/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 0.2.1-dev-b7b32d2 [2021-02-19 18:14:56,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 18:14:56,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 18:14:56,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 18:14:56,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 18:14:56,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 18:14:56,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 18:14:56,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 18:14:56,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 18:14:56,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 18:14:56,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 18:14:56,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 18:14:56,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 18:14:56,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 18:14:56,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 18:14:56,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 18:14:56,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 18:14:56,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 18:14:56,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 18:14:56,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 18:14:56,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 18:14:56,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 18:14:56,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 18:14:56,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 18:14:56,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 18:14:56,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 18:14:56,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 18:14:56,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 18:14:56,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 18:14:56,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 18:14:56,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 18:14:56,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 18:14:56,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 18:14:56,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 18:14:56,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 18:14:56,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 18:14:56,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 18:14:56,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 18:14:56,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 18:14:56,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 18:14:56,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 18:14:56,194 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 [2021-02-19 18:14:56,247 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 18:14:56,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 18:14:56,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 18:14:56,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 18:14:56,250 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 18:14:56,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 18:14:56,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 18:14:56,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 18:14:56,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 18:14:56,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 18:14:56,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 18:14:56,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 18:14:56,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 18:14:56,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 18:14:56,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 18:14:56,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 18:14:56,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 18:14:56,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 18:14:56,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 18:14:56,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 18:14:56,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 18:14:56,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 18:14:56,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 18:14:56,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 18:14:56,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 18:14:56,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 18:14:56,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 18:14:56,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 18:14:56,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 18:14:56,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 18:14:56,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 18:14:56,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 18:14:56,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 18:14:56,680 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 18:14:56,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2021-02-19 18:14:56,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e54d3b11/4d1e5ff9daa24881acc865c610de260e/FLAGdc91df891 [2021-02-19 18:14:57,489 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 18:14:57,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2021-02-19 18:14:57,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e54d3b11/4d1e5ff9daa24881acc865c610de260e/FLAGdc91df891 [2021-02-19 18:14:57,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e54d3b11/4d1e5ff9daa24881acc865c610de260e [2021-02-19 18:14:57,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 18:14:57,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 18:14:57,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 18:14:57,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 18:14:57,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 18:14:57,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 06:14:57" (1/1) ... [2021-02-19 18:14:57,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc27f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:14:57, skipping insertion in model container [2021-02-19 18:14:57,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 06:14:57" (1/1) ... [2021-02-19 18:14:57,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 18:14:57,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 18:14:58,056 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.15.cil.c[401,414] [2021-02-19 18:14:58,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 18:14:58,295 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 18:14:58,306 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.15.cil.c[401,414] [2021-02-19 18:14:58,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 18:14:58,429 INFO L208 MainTranslator]: Completed translation [2021-02-19 18:14:58,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:14:58 WrapperNode [2021-02-19 18:14:58,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 18:14:58,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 18:14:58,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 18:14:58,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 18:14:58,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:14:58" (1/1) ... [2021-02-19 18:14:58,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:14:58" (1/1) ... [2021-02-19 18:14:58,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:14:58" (1/1) ... [2021-02-19 18:14:58,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:14:58" (1/1) ... [2021-02-19 18:14:58,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:14:58" (1/1) ... [2021-02-19 18:14:58,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:14:58" (1/1) ... [2021-02-19 18:14:58,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:14:58" (1/1) ... [2021-02-19 18:14:58,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 18:14:58,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 18:14:58,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 18:14:58,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 18:14:58,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:14:58" (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 [2021-02-19 18:14:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 18:14:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 18:14:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 18:14:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-19 18:14:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2021-02-19 18:14:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2021-02-19 18:14:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2021-02-19 18:14:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2021-02-19 18:14:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2021-02-19 18:14:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2021-02-19 18:14:58,679 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2021-02-19 18:14:58,679 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2021-02-19 18:14:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2021-02-19 18:14:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2021-02-19 18:14:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2021-02-19 18:14:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2021-02-19 18:14:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2021-02-19 18:14:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2021-02-19 18:14:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2021-02-19 18:14:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2021-02-19 18:14:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2021-02-19 18:14:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2021-02-19 18:14:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2021-02-19 18:14:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2021-02-19 18:14:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2021-02-19 18:14:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2021-02-19 18:14:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2021-02-19 18:14:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2021-02-19 18:14:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2021-02-19 18:14:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2021-02-19 18:14:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2021-02-19 18:14:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2021-02-19 18:14:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-19 18:14:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-19 18:14:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-19 18:14:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-19 18:14:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-19 18:14:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-19 18:14:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-19 18:14:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-02-19 18:14:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-19 18:14:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-19 18:14:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-19 18:14:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-19 18:14:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-19 18:14:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 18:14:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 18:14:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 18:14:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 18:14:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 18:14:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 18:14:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-19 18:14:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2021-02-19 18:14:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2021-02-19 18:14:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2021-02-19 18:14:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2021-02-19 18:14:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2021-02-19 18:14:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2021-02-19 18:14:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2021-02-19 18:14:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2021-02-19 18:14:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2021-02-19 18:14:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2021-02-19 18:14:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2021-02-19 18:14:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2021-02-19 18:14:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2021-02-19 18:14:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2021-02-19 18:14:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-02-19 18:14:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure master [2021-02-19 18:14:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2021-02-19 18:14:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2021-02-19 18:14:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2021-02-19 18:14:58,690 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2021-02-19 18:14:58,690 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2021-02-19 18:14:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2021-02-19 18:14:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2021-02-19 18:14:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2021-02-19 18:14:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2021-02-19 18:14:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2021-02-19 18:14:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2021-02-19 18:14:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2021-02-19 18:14:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2021-02-19 18:14:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-19 18:14:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-19 18:14:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-19 18:14:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-19 18:14:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-19 18:14:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-19 18:14:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-19 18:14:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-19 18:14:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-19 18:14:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-19 18:14:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-19 18:14:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-19 18:14:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 18:14:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 18:14:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 18:14:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 18:14:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 18:14:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 18:14:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 18:14:59,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 18:14:59,907 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-02-19 18:14:59,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:14:59 BoogieIcfgContainer [2021-02-19 18:14:59,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 18:14:59,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 18:14:59,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 18:14:59,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 18:14:59,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 06:14:57" (1/3) ... [2021-02-19 18:14:59,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@857fa91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:14:59, skipping insertion in model container [2021-02-19 18:14:59,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:14:58" (2/3) ... [2021-02-19 18:14:59,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@857fa91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:14:59, skipping insertion in model container [2021-02-19 18:14:59,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:14:59" (3/3) ... [2021-02-19 18:14:59,921 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2021-02-19 18:14:59,928 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 18:14:59,934 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 18:14:59,954 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 18:14:59,990 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 18:14:59,990 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 18:14:59,990 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 18:14:59,991 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 18:14:59,991 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 18:14:59,991 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 18:14:59,991 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 18:14:59,991 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 18:15:00,021 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2021-02-19 18:15:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:15:00,040 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:15:00,042 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] [2021-02-19 18:15:00,042 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:15:00,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:15:00,050 INFO L82 PathProgramCache]: Analyzing trace with hash -116389850, now seen corresponding path program 1 times [2021-02-19 18:15:00,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:15:00,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135463380] [2021-02-19 18:15:00,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:15:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:00,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:00,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:00,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:00,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:00,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:00,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:00,953 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:15:00,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:15:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:00,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:00,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:15:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:15:01,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:15:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:15:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-19 18:15:01,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:15:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:15:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:15:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:15:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:15:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:15:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:15:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:15:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:15:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:15:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:15:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:15:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:15:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:15:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:15:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:15:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:15:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:15:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:01,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:01,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:01,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:15:01,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135463380] [2021-02-19 18:15:01,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:15:01,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 18:15:01,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596517878] [2021-02-19 18:15:01,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 18:15:01,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:15:01,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 18:15:01,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-19 18:15:01,720 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2021-02-19 18:15:02,197 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-19 18:15:02,381 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-19 18:15:02,855 WARN L202 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-19 18:15:03,058 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:15:11,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:15:11,574 INFO L93 Difference]: Finished difference Result 1304 states and 2146 transitions. [2021-02-19 18:15:11,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 18:15:11,576 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2021-02-19 18:15:11,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:15:11,600 INFO L225 Difference]: With dead ends: 1304 [2021-02-19 18:15:11,600 INFO L226 Difference]: Without dead ends: 810 [2021-02-19 18:15:11,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:15:11,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2021-02-19 18:15:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2021-02-19 18:15:11,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2021-02-19 18:15:11,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2021-02-19 18:15:11,921 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2021-02-19 18:15:11,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:15:11,923 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2021-02-19 18:15:11,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 18:15:11,924 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2021-02-19 18:15:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:15:11,935 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:15:11,936 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] [2021-02-19 18:15:11,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 18:15:11,936 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:15:11,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:15:11,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1589739752, now seen corresponding path program 1 times [2021-02-19 18:15:11,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:15:11,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348692422] [2021-02-19 18:15:11,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:15:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:12,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,416 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:15:12,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:15:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:15:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:15:12,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:15:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:15:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-19 18:15:12,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:15:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:15:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:15:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:15:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:15:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:15:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:15:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:15:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:15:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:15:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:15:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:15:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:15:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:15:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:15:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:15:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:15:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:15:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:12,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:12,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:12,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:15:12,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348692422] [2021-02-19 18:15:12,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:15:12,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 18:15:12,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072567050] [2021-02-19 18:15:12,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 18:15:12,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:15:12,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 18:15:12,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-19 18:15:12,872 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2021-02-19 18:15:13,284 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-19 18:15:13,437 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-19 18:15:13,896 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-19 18:15:14,087 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:15:22,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:15:22,049 INFO L93 Difference]: Finished difference Result 1275 states and 1946 transitions. [2021-02-19 18:15:22,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 18:15:22,050 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2021-02-19 18:15:22,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:15:22,058 INFO L225 Difference]: With dead ends: 1275 [2021-02-19 18:15:22,058 INFO L226 Difference]: Without dead ends: 810 [2021-02-19 18:15:22,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-02-19 18:15:22,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2021-02-19 18:15:22,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2021-02-19 18:15:22,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2021-02-19 18:15:22,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2021-02-19 18:15:22,173 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2021-02-19 18:15:22,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:15:22,174 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2021-02-19 18:15:22,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 18:15:22,174 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2021-02-19 18:15:22,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:15:22,178 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:15:22,178 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] [2021-02-19 18:15:22,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 18:15:22,179 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:15:22,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:15:22,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1735337046, now seen corresponding path program 1 times [2021-02-19 18:15:22,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:15:22,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280029241] [2021-02-19 18:15:22,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:15:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,276 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:15:22,277 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:15:22,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:15:22,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:15:22,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,679 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:15:22,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:15:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:22,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:15:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:15:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:15:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:15:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:22,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:15:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:15:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:15:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:15:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:15:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:15:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:15:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:15:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:15:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:15:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:15:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:15:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:15:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:15:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:15:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:15:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:15:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:15:23,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280029241] [2021-02-19 18:15:23,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:15:23,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-19 18:15:23,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929429707] [2021-02-19 18:15:23,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 18:15:23,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:15:23,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 18:15:23,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:15:23,136 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2021-02-19 18:15:23,544 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-19 18:15:23,690 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:15:23,926 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:15:31,855 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-19 18:15:32,086 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-19 18:15:38,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:15:38,073 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2021-02-19 18:15:38,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 18:15:38,076 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2021-02-19 18:15:38,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:15:38,086 INFO L225 Difference]: With dead ends: 1991 [2021-02-19 18:15:38,086 INFO L226 Difference]: Without dead ends: 1532 [2021-02-19 18:15:38,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-02-19 18:15:38,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2021-02-19 18:15:38,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2021-02-19 18:15:38,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2021-02-19 18:15:38,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2021-02-19 18:15:38,302 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2021-02-19 18:15:38,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:15:38,303 INFO L480 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2021-02-19 18:15:38,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-19 18:15:38,303 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2021-02-19 18:15:38,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:15:38,307 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:15:38,307 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] [2021-02-19 18:15:38,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 18:15:38,307 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:15:38,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:15:38,308 INFO L82 PathProgramCache]: Analyzing trace with hash 160516877, now seen corresponding path program 1 times [2021-02-19 18:15:38,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:15:38,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918985672] [2021-02-19 18:15:38,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:15:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:38,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:38,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:38,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:38,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:38,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:38,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:38,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:38,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:38,848 WARN L202 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:15:38,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:15:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:38,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:38,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:15:38,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:15:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:38,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:38,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:38,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:15:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:38,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:38,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:15:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:15:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:39,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:39,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:15:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:15:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:15:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:15:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:15:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:15:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:15:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:15:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:15:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:15:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:15:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:15:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:15:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:15:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:15:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:15:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:15:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:39,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:39,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:15:39,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918985672] [2021-02-19 18:15:39,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:15:39,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-19 18:15:39,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056594676] [2021-02-19 18:15:39,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 18:15:39,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:15:39,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 18:15:39,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:15:39,436 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 9 states. [2021-02-19 18:15:39,822 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-19 18:15:39,967 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:15:40,178 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:15:47,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:15:47,388 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2021-02-19 18:15:47,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:15:47,389 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2021-02-19 18:15:47,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:15:47,404 INFO L225 Difference]: With dead ends: 2455 [2021-02-19 18:15:47,405 INFO L226 Difference]: Without dead ends: 1521 [2021-02-19 18:15:47,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-02-19 18:15:47,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2021-02-19 18:15:47,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2021-02-19 18:15:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2021-02-19 18:15:47,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2021-02-19 18:15:47,690 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2021-02-19 18:15:47,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:15:47,691 INFO L480 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2021-02-19 18:15:47,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-19 18:15:47,691 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2021-02-19 18:15:47,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:15:47,695 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:15:47,695 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] [2021-02-19 18:15:47,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 18:15:47,696 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:15:47,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:15:47,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1234250121, now seen corresponding path program 1 times [2021-02-19 18:15:47,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:15:47,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880673422] [2021-02-19 18:15:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:15:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:47,792 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:15:47,792 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:15:47,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:47,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:15:47,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:47,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:15:47,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:47,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,186 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:15:48,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:15:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:48,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:15:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:15:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:15:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:15:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:48,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:48,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:15:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:15:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:15:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:15:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:15:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:15:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:15:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:15:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:15:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:15:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:15:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:15:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:15:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:15:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:15:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:15:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:15:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:48,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:48,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:48,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:15:48,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880673422] [2021-02-19 18:15:48,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:15:48,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:15:48,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263785024] [2021-02-19 18:15:48,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:15:48,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:15:48,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:15:48,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:15:48,653 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2021-02-19 18:15:49,103 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-19 18:15:49,271 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:15:49,507 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:15:57,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:15:57,719 INFO L93 Difference]: Finished difference Result 2455 states and 3730 transitions. [2021-02-19 18:15:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:15:57,720 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:15:57,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:15:57,730 INFO L225 Difference]: With dead ends: 2455 [2021-02-19 18:15:57,730 INFO L226 Difference]: Without dead ends: 1521 [2021-02-19 18:15:57,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:15:57,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2021-02-19 18:15:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2021-02-19 18:15:57,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2021-02-19 18:15:57,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2021-02-19 18:15:57,958 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2021-02-19 18:15:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:15:57,958 INFO L480 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2021-02-19 18:15:57,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:15:57,958 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2021-02-19 18:15:57,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:15:57,963 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:15:57,963 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] [2021-02-19 18:15:57,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 18:15:57,964 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:15:57,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:15:57,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1683065083, now seen corresponding path program 1 times [2021-02-19 18:15:57,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:15:57,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085881873] [2021-02-19 18:15:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:15:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,057 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:15:58,057 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:15:58,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:15:58,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:15:58,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,463 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:15:58,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:15:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:58,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:15:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:15:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:15:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:15:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:58,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:58,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:15:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:15:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:15:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:15:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:15:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:15:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:15:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:15:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:15:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:15:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:15:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:15:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:15:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:15:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:15:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:15:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:15:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:58,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:58,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:58,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:15:58,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085881873] [2021-02-19 18:15:58,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:15:58,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:15:58,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119598394] [2021-02-19 18:15:58,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:15:58,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:15:58,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:15:58,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:15:58,855 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2021-02-19 18:15:59,257 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-19 18:15:59,425 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:15:59,663 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:16:07,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:16:07,828 INFO L93 Difference]: Finished difference Result 2455 states and 3712 transitions. [2021-02-19 18:16:07,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:16:07,829 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:16:07,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:16:07,838 INFO L225 Difference]: With dead ends: 2455 [2021-02-19 18:16:07,838 INFO L226 Difference]: Without dead ends: 1521 [2021-02-19 18:16:07,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:16:07,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2021-02-19 18:16:08,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2021-02-19 18:16:08,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2021-02-19 18:16:08,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1405 transitions. [2021-02-19 18:16:08,053 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1405 transitions. Word has length 240 [2021-02-19 18:16:08,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:16:08,053 INFO L480 AbstractCegarLoop]: Abstraction has 965 states and 1405 transitions. [2021-02-19 18:16:08,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:16:08,053 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1405 transitions. [2021-02-19 18:16:08,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:16:08,057 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:16:08,057 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] [2021-02-19 18:16:08,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 18:16:08,057 INFO L428 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:16:08,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:16:08,058 INFO L82 PathProgramCache]: Analyzing trace with hash 439585289, now seen corresponding path program 1 times [2021-02-19 18:16:08,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:16:08,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46782588] [2021-02-19 18:16:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:16:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:08,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:08,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:08,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,498 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:16:08,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:16:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:08,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:16:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:16:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:16:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:16:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:16:08,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:16:08,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:16:08,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:16:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:16:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:16:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:16:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:16:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:16:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:16:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:16:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:16:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:16:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:16:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:16:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:16:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:16:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:16:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:16:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:16:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:08,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:08,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:08,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:16:08,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46782588] [2021-02-19 18:16:08,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:16:08,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:16:08,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000318974] [2021-02-19 18:16:08,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:16:08,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:16:08,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:16:08,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:16:08,914 INFO L87 Difference]: Start difference. First operand 965 states and 1405 transitions. Second operand 10 states. [2021-02-19 18:16:09,315 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-19 18:16:09,461 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:16:09,684 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:16:10,726 WARN L202 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2021-02-19 18:16:11,700 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2021-02-19 18:16:14,604 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-19 18:16:16,761 WARN L202 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2021-02-19 18:16:27,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:16:27,865 INFO L93 Difference]: Finished difference Result 4067 states and 6196 transitions. [2021-02-19 18:16:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 18:16:27,865 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:16:27,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:16:27,882 INFO L225 Difference]: With dead ends: 4067 [2021-02-19 18:16:27,883 INFO L226 Difference]: Without dead ends: 3133 [2021-02-19 18:16:27,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2021-02-19 18:16:27,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3133 states. [2021-02-19 18:16:28,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3133 to 1988. [2021-02-19 18:16:28,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1988 states. [2021-02-19 18:16:28,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2940 transitions. [2021-02-19 18:16:28,332 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2940 transitions. Word has length 240 [2021-02-19 18:16:28,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:16:28,332 INFO L480 AbstractCegarLoop]: Abstraction has 1988 states and 2940 transitions. [2021-02-19 18:16:28,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:16:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2940 transitions. [2021-02-19 18:16:28,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:16:28,335 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:16:28,335 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] [2021-02-19 18:16:28,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-19 18:16:28,335 INFO L428 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:16:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:16:28,336 INFO L82 PathProgramCache]: Analyzing trace with hash -432825273, now seen corresponding path program 1 times [2021-02-19 18:16:28,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:16:28,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571358191] [2021-02-19 18:16:28,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:16:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:28,395 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:16:28,395 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:16:28,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:28,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:16:28,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:28,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:16:28,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:28,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:28,794 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:16:28,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:16:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:28,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:28,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:28,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:16:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:28,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:28,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:16:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:28,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:28,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:28,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:16:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:28,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:28,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:28,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:16:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:28,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:28,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:29,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:29,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:16:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:16:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:16:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:16:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:16:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:16:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:16:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:16:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:16:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:16:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:16:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:16:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:16:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:16:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:16:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:16:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:16:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:29,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:29,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:29,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:16:29,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571358191] [2021-02-19 18:16:29,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:16:29,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:16:29,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338029730] [2021-02-19 18:16:29,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:16:29,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:16:29,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:16:29,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:16:29,167 INFO L87 Difference]: Start difference. First operand 1988 states and 2940 transitions. Second operand 10 states. [2021-02-19 18:16:29,632 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-19 18:16:29,798 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:16:30,021 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:16:38,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:16:38,496 INFO L93 Difference]: Finished difference Result 5035 states and 7660 transitions. [2021-02-19 18:16:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:16:38,497 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:16:38,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:16:38,514 INFO L225 Difference]: With dead ends: 5035 [2021-02-19 18:16:38,514 INFO L226 Difference]: Without dead ends: 3080 [2021-02-19 18:16:38,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:16:38,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2021-02-19 18:16:39,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 1988. [2021-02-19 18:16:39,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1988 states. [2021-02-19 18:16:39,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2922 transitions. [2021-02-19 18:16:39,083 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2922 transitions. Word has length 240 [2021-02-19 18:16:39,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:16:39,084 INFO L480 AbstractCegarLoop]: Abstraction has 1988 states and 2922 transitions. [2021-02-19 18:16:39,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:16:39,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2922 transitions. [2021-02-19 18:16:39,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:16:39,086 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:16:39,086 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] [2021-02-19 18:16:39,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-19 18:16:39,087 INFO L428 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:16:39,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:16:39,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1976983477, now seen corresponding path program 1 times [2021-02-19 18:16:39,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:16:39,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59970215] [2021-02-19 18:16:39,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:16:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:39,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:39,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:39,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,556 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:16:39,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:16:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:39,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:16:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:16:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:16:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:16:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:16:39,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:16:39,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:16:39,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:16:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:16:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:16:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:16:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:16:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:16:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:16:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:16:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:16:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:16:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:16:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:16:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:16:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:16:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:16:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:16:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:16:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:39,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:39,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:39,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:16:39,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59970215] [2021-02-19 18:16:39,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:16:39,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:16:39,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449961245] [2021-02-19 18:16:39,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:16:39,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:16:39,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:16:39,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:16:39,991 INFO L87 Difference]: Start difference. First operand 1988 states and 2922 transitions. Second operand 10 states. [2021-02-19 18:16:40,426 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-19 18:16:40,604 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:16:40,847 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:16:41,549 WARN L202 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-02-19 18:16:41,681 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-19 18:16:42,379 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-19 18:16:45,375 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-19 18:16:47,270 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-19 18:16:59,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:16:59,059 INFO L93 Difference]: Finished difference Result 8400 states and 12882 transitions. [2021-02-19 18:16:59,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 18:16:59,060 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:16:59,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:16:59,092 INFO L225 Difference]: With dead ends: 8400 [2021-02-19 18:16:59,092 INFO L226 Difference]: Without dead ends: 6445 [2021-02-19 18:16:59,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2021-02-19 18:16:59,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6445 states. [2021-02-19 18:17:00,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6445 to 4190. [2021-02-19 18:17:00,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4190 states. [2021-02-19 18:17:00,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6296 transitions. [2021-02-19 18:17:00,225 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6296 transitions. Word has length 240 [2021-02-19 18:17:00,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:17:00,226 INFO L480 AbstractCegarLoop]: Abstraction has 4190 states and 6296 transitions. [2021-02-19 18:17:00,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:17:00,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6296 transitions. [2021-02-19 18:17:00,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:17:00,229 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:17:00,230 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] [2021-02-19 18:17:00,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-19 18:17:00,230 INFO L428 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:17:00,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:17:00,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1763366391, now seen corresponding path program 1 times [2021-02-19 18:17:00,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:17:00,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611942422] [2021-02-19 18:17:00,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:17:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:00,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:00,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:00,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,677 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:17:00,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:17:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:00,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:17:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:17:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:17:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:17:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:17:00,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:17:00,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:17:00,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:17:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:17:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:17:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:17:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:17:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:17:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:17:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:17:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:17:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:17:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:17:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:17:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:17:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:17:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:17:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:17:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:00,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:17:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:00,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:00,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:01,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:17:01,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611942422] [2021-02-19 18:17:01,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:17:01,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:17:01,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364719196] [2021-02-19 18:17:01,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:17:01,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:17:01,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:17:01,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:17:01,115 INFO L87 Difference]: Start difference. First operand 4190 states and 6296 transitions. Second operand 10 states. [2021-02-19 18:17:01,549 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-19 18:17:01,720 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:17:01,959 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:17:02,540 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-02-19 18:17:03,220 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-19 18:17:05,899 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-19 18:17:07,760 WARN L202 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-19 18:17:18,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:17:18,844 INFO L93 Difference]: Finished difference Result 17694 states and 27624 transitions. [2021-02-19 18:17:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 18:17:18,844 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:17:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:17:18,905 INFO L225 Difference]: With dead ends: 17694 [2021-02-19 18:17:18,906 INFO L226 Difference]: Without dead ends: 13537 [2021-02-19 18:17:18,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2021-02-19 18:17:18,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13537 states. [2021-02-19 18:17:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13537 to 9062. [2021-02-19 18:17:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9062 states. [2021-02-19 18:17:20,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9062 states to 9062 states and 14024 transitions. [2021-02-19 18:17:20,785 INFO L78 Accepts]: Start accepts. Automaton has 9062 states and 14024 transitions. Word has length 240 [2021-02-19 18:17:20,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:17:20,785 INFO L480 AbstractCegarLoop]: Abstraction has 9062 states and 14024 transitions. [2021-02-19 18:17:20,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:17:20,785 INFO L276 IsEmpty]: Start isEmpty. Operand 9062 states and 14024 transitions. [2021-02-19 18:17:20,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:17:20,788 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:17:20,789 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] [2021-02-19 18:17:20,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-19 18:17:20,789 INFO L428 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:17:20,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:17:20,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1479380853, now seen corresponding path program 1 times [2021-02-19 18:17:20,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:17:20,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661076537] [2021-02-19 18:17:20,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:17:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:20,845 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:17:20,845 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:17:20,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:20,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:17:20,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:20,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:17:20,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:20,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,203 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:17:21,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:17:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:21,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:17:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:17:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:17:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:17:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:21,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:21,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:17:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:17:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:17:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:17:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:17:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:17:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:17:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:17:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:17:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:17:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:17:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:17:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:17:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:17:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:17:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:17:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:17:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:21,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:21,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:17:21,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661076537] [2021-02-19 18:17:21,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:17:21,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:17:21,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230465669] [2021-02-19 18:17:21,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:17:21,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:17:21,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:17:21,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:17:21,584 INFO L87 Difference]: Start difference. First operand 9062 states and 14024 transitions. Second operand 10 states. [2021-02-19 18:17:22,090 WARN L202 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-19 18:17:22,258 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:17:22,492 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:17:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:17:32,966 INFO L93 Difference]: Finished difference Result 22399 states and 35378 transitions. [2021-02-19 18:17:32,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:17:32,967 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:17:32,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:17:33,028 INFO L225 Difference]: With dead ends: 22399 [2021-02-19 18:17:33,028 INFO L226 Difference]: Without dead ends: 13370 [2021-02-19 18:17:33,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:17:33,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13370 states. [2021-02-19 18:17:34,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13370 to 9062. [2021-02-19 18:17:34,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9062 states. [2021-02-19 18:17:34,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9062 states to 9062 states and 13892 transitions. [2021-02-19 18:17:34,785 INFO L78 Accepts]: Start accepts. Automaton has 9062 states and 13892 transitions. Word has length 240 [2021-02-19 18:17:34,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:17:34,786 INFO L480 AbstractCegarLoop]: Abstraction has 9062 states and 13892 transitions. [2021-02-19 18:17:34,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:17:34,786 INFO L276 IsEmpty]: Start isEmpty. Operand 9062 states and 13892 transitions. [2021-02-19 18:17:34,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:17:34,789 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:17:34,789 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] [2021-02-19 18:17:34,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-19 18:17:34,790 INFO L428 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:17:34,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:17:34,790 INFO L82 PathProgramCache]: Analyzing trace with hash -144274681, now seen corresponding path program 1 times [2021-02-19 18:17:34,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:17:34,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597106595] [2021-02-19 18:17:34,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:17:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:34,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:34,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:34,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,344 WARN L202 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:17:35,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:17:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:35,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:17:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:17:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:17:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:17:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:17:35,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:17:35,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:17:35,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:17:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:17:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:17:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:17:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:17:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:17:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:17:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:17:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:17:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:17:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:17:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:17:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:17:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:17:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:17:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:17:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:17:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:35,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:35,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:35,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:17:35,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597106595] [2021-02-19 18:17:35,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:17:35,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:17:35,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809335966] [2021-02-19 18:17:35,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:17:35,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:17:35,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:17:35,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:17:35,816 INFO L87 Difference]: Start difference. First operand 9062 states and 13892 transitions. Second operand 10 states. [2021-02-19 18:17:36,287 WARN L202 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-19 18:17:36,456 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:17:36,701 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:17:37,693 WARN L202 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2021-02-19 18:17:38,499 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2021-02-19 18:17:41,192 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-19 18:17:43,727 WARN L202 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2021-02-19 18:17:57,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:17:57,015 INFO L93 Difference]: Finished difference Result 37826 states and 60028 transitions. [2021-02-19 18:17:57,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 18:17:57,016 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:17:57,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:17:57,116 INFO L225 Difference]: With dead ends: 37826 [2021-02-19 18:17:57,116 INFO L226 Difference]: Without dead ends: 28797 [2021-02-19 18:17:57,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2021-02-19 18:17:57,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28797 states. [2021-02-19 18:18:01,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28797 to 19922. [2021-02-19 18:18:01,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19922 states. [2021-02-19 18:18:01,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19922 states to 19922 states and 31704 transitions. [2021-02-19 18:18:01,244 INFO L78 Accepts]: Start accepts. Automaton has 19922 states and 31704 transitions. Word has length 240 [2021-02-19 18:18:01,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:18:01,245 INFO L480 AbstractCegarLoop]: Abstraction has 19922 states and 31704 transitions. [2021-02-19 18:18:01,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:18:01,245 INFO L276 IsEmpty]: Start isEmpty. Operand 19922 states and 31704 transitions. [2021-02-19 18:18:01,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:18:01,249 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:18:01,249 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] [2021-02-19 18:18:01,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-19 18:18:01,250 INFO L428 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:18:01,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:18:01,250 INFO L82 PathProgramCache]: Analyzing trace with hash -2139577403, now seen corresponding path program 1 times [2021-02-19 18:18:01,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:18:01,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315802790] [2021-02-19 18:18:01,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:18:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,299 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:18:01,299 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:18:01,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:18:01,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:18:01,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:01,706 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:18:01,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:18:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:01,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:18:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:01,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:18:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:01,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:18:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:01,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:18:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:01,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:01,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:18:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:01,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:18:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:01,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:18:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:01,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:18:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:01,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:18:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:01,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:18:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:01,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:18:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:01,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:18:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:01,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:01,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:02,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:18:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:02,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:02,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:02,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:18:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:02,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:02,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:02,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:18:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:02,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:02,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:02,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:18:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:02,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:02,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:02,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:18:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:02,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:02,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:02,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:18:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:02,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:02,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:02,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:18:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:02,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:02,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:02,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:18:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:02,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:02,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:02,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:18:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:02,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:02,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:02,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:18:02,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315802790] [2021-02-19 18:18:02,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:18:02,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:18:02,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298020686] [2021-02-19 18:18:02,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:18:02,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:18:02,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:18:02,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:18:02,116 INFO L87 Difference]: Start difference. First operand 19922 states and 31704 transitions. Second operand 10 states. [2021-02-19 18:18:02,603 WARN L202 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-19 18:18:02,774 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:18:03,028 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:18:15,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:18:15,068 INFO L93 Difference]: Finished difference Result 48407 states and 78634 transitions. [2021-02-19 18:18:15,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:18:15,069 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:18:15,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:18:15,165 INFO L225 Difference]: With dead ends: 48407 [2021-02-19 18:18:15,166 INFO L226 Difference]: Without dead ends: 28518 [2021-02-19 18:18:15,218 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 [2021-02-19 18:18:15,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28518 states. [2021-02-19 18:18:18,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28518 to 19922. [2021-02-19 18:18:18,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19922 states. [2021-02-19 18:18:18,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19922 states to 19922 states and 31332 transitions. [2021-02-19 18:18:18,997 INFO L78 Accepts]: Start accepts. Automaton has 19922 states and 31332 transitions. Word has length 240 [2021-02-19 18:18:18,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:18:18,997 INFO L480 AbstractCegarLoop]: Abstraction has 19922 states and 31332 transitions. [2021-02-19 18:18:18,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:18:18,997 INFO L276 IsEmpty]: Start isEmpty. Operand 19922 states and 31332 transitions. [2021-02-19 18:18:19,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:18:19,001 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:18:19,001 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] [2021-02-19 18:18:19,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-19 18:18:19,002 INFO L428 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:18:19,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:18:19,002 INFO L82 PathProgramCache]: Analyzing trace with hash -969737527, now seen corresponding path program 1 times [2021-02-19 18:18:19,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:18:19,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931873119] [2021-02-19 18:18:19,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:18:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:19,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:19,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:19,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,455 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:18:19,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:18:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:19,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:18:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:18:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:18:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:18:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:18:19,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:18:19,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:18:19,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:18:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:18:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:18:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:18:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:18:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:18:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:18:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:18:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:18:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:18:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:18:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:18:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:18:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:18:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:18:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:18:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:18:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:19,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:19,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:19,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:18:19,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931873119] [2021-02-19 18:18:19,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:18:19,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:18:19,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154910812] [2021-02-19 18:18:19,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:18:19,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:18:19,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:18:19,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:18:19,819 INFO L87 Difference]: Start difference. First operand 19922 states and 31332 transitions. Second operand 10 states. [2021-02-19 18:18:20,399 WARN L202 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-19 18:18:20,570 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:18:20,806 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:18:21,850 WARN L202 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2021-02-19 18:18:22,737 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2021-02-19 18:18:25,856 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-19 18:18:28,882 WARN L202 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2021-02-19 18:18:48,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:18:48,597 INFO L93 Difference]: Finished difference Result 82214 states and 133796 transitions. [2021-02-19 18:18:48,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 18:18:48,597 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:18:48,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:18:48,811 INFO L225 Difference]: With dead ends: 82214 [2021-02-19 18:18:48,812 INFO L226 Difference]: Without dead ends: 62325 [2021-02-19 18:18:48,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2021-02-19 18:18:48,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62325 states. [2021-02-19 18:18:57,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62325 to 44666. [2021-02-19 18:18:57,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44666 states. [2021-02-19 18:18:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44666 states to 44666 states and 73888 transitions. [2021-02-19 18:18:57,160 INFO L78 Accepts]: Start accepts. Automaton has 44666 states and 73888 transitions. Word has length 240 [2021-02-19 18:18:57,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:18:57,161 INFO L480 AbstractCegarLoop]: Abstraction has 44666 states and 73888 transitions. [2021-02-19 18:18:57,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:18:57,161 INFO L276 IsEmpty]: Start isEmpty. Operand 44666 states and 73888 transitions. [2021-02-19 18:18:57,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:18:57,167 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:18:57,167 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] [2021-02-19 18:18:57,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-19 18:18:57,168 INFO L428 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:18:57,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:18:57,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1043322105, now seen corresponding path program 1 times [2021-02-19 18:18:57,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:18:57,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414991345] [2021-02-19 18:18:57,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:18:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:57,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:57,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:57,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,605 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:18:57,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:18:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:57,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:18:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:18:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:18:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:18:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:18:57,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:18:57,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:18:57,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:18:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:18:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:18:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:18:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:18:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:18:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:18:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:18:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:18:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:18:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:18:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:18:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:18:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:18:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:18:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:18:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:57,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:18:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:57,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:57,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:58,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:18:58,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414991345] [2021-02-19 18:18:58,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:18:58,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:18:58,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937455625] [2021-02-19 18:18:58,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:18:58,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:18:58,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:18:58,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:18:58,169 INFO L87 Difference]: Start difference. First operand 44666 states and 73888 transitions. Second operand 10 states. [2021-02-19 18:18:58,678 WARN L202 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-19 18:18:58,849 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:18:59,088 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 18:18:59,672 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-02-19 18:19:00,313 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-19 18:19:03,489 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-19 18:19:06,828 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-19 18:19:37,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:19:37,730 INFO L93 Difference]: Finished difference Result 185259 states and 319194 transitions. [2021-02-19 18:19:37,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 18:19:37,730 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:19:37,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:19:38,541 INFO L225 Difference]: With dead ends: 185259 [2021-02-19 18:19:38,541 INFO L226 Difference]: Without dead ends: 140626 [2021-02-19 18:19:38,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2021-02-19 18:19:38,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140626 states. [2021-02-19 18:19:55,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140626 to 105974. [2021-02-19 18:19:55,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105974 states. [2021-02-19 18:19:55,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105974 states to 105974 states and 188216 transitions. [2021-02-19 18:19:55,957 INFO L78 Accepts]: Start accepts. Automaton has 105974 states and 188216 transitions. Word has length 240 [2021-02-19 18:19:55,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:19:55,957 INFO L480 AbstractCegarLoop]: Abstraction has 105974 states and 188216 transitions. [2021-02-19 18:19:55,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:19:55,957 INFO L276 IsEmpty]: Start isEmpty. Operand 105974 states and 188216 transitions. [2021-02-19 18:19:55,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:19:55,970 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:19:55,970 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] [2021-02-19 18:19:55,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-19 18:19:55,971 INFO L428 AbstractCegarLoop]: === Iteration 16 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:19:55,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:19:55,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1171061513, now seen corresponding path program 1 times [2021-02-19 18:19:55,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:19:55,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448989286] [2021-02-19 18:19:55,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:19:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,029 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:19:56,030 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:19:56,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:19:56,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:19:56,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,460 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:19:56,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:19:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:19:56,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:19:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:19:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:19:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:19:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:19:56,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:19:56,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:19:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:19:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:19:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:19:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:19:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:19:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:19:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:19:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:19:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:19:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:19:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:19:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:19:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:19:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:19:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:19:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:56,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:19:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:56,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:56,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:19:57,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448989286] [2021-02-19 18:19:57,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:19:57,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:19:57,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607365037] [2021-02-19 18:19:57,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:19:57,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:19:57,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:19:57,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:19:57,022 INFO L87 Difference]: Start difference. First operand 105974 states and 188216 transitions. Second operand 10 states. [2021-02-19 18:19:57,465 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-19 18:19:57,632 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:19:57,931 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:20:03,245 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-19 18:20:07,540 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-19 18:20:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:20:45,838 INFO L93 Difference]: Finished difference Result 281056 states and 559411 transitions. [2021-02-19 18:20:45,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 18:20:45,838 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:20:45,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:20:46,979 INFO L225 Difference]: With dead ends: 281056 [2021-02-19 18:20:46,979 INFO L226 Difference]: Without dead ends: 175115 [2021-02-19 18:20:47,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2021-02-19 18:20:47,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175115 states. [2021-02-19 18:21:09,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175115 to 124662. [2021-02-19 18:21:09,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124662 states. [2021-02-19 18:21:10,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124662 states to 124662 states and 208852 transitions. [2021-02-19 18:21:10,479 INFO L78 Accepts]: Start accepts. Automaton has 124662 states and 208852 transitions. Word has length 240 [2021-02-19 18:21:10,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:21:10,479 INFO L480 AbstractCegarLoop]: Abstraction has 124662 states and 208852 transitions. [2021-02-19 18:21:10,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:21:10,480 INFO L276 IsEmpty]: Start isEmpty. Operand 124662 states and 208852 transitions. [2021-02-19 18:21:10,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-19 18:21:10,489 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:21:10,490 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] [2021-02-19 18:21:10,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-19 18:21:10,490 INFO L428 AbstractCegarLoop]: === Iteration 17 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:21:10,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:21:10,491 INFO L82 PathProgramCache]: Analyzing trace with hash -2089661788, now seen corresponding path program 1 times [2021-02-19 18:21:10,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:21:10,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933607069] [2021-02-19 18:21:10,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:21:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:10,552 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:21:10,552 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:21:10,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:10,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:21:10,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:10,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:21:10,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:10,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,227 WARN L202 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-19 18:21:11,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:21:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:21:11,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:21:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:21:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:21:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 18:21:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:21:11,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:21:11,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-19 18:21:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:21:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:21:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:21:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:21:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:21:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:21:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:21:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:21:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:21:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:21:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:21:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:21:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:21:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:21:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-19 18:21:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-19 18:21:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:11,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:11,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:21:11,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933607069] [2021-02-19 18:21:11,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:21:11,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:21:11,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300824899] [2021-02-19 18:21:11,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:21:11,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:21:11,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:21:11,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:21:11,642 INFO L87 Difference]: Start difference. First operand 124662 states and 208852 transitions. Second operand 10 states. [2021-02-19 18:21:12,022 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-19 18:21:12,191 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:21:12,515 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 18:21:18,132 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-19 18:21:22,377 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-19 18:22:07,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:22:07,807 INFO L93 Difference]: Finished difference Result 323936 states and 609387 transitions. [2021-02-19 18:22:07,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 18:22:07,808 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-19 18:22:07,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:22:09,132 INFO L225 Difference]: With dead ends: 323936 [2021-02-19 18:22:09,133 INFO L226 Difference]: Without dead ends: 199307 [2021-02-19 18:22:09,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2021-02-19 18:22:09,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199307 states.