/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 [2021-02-21 16:42:00,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:42:00,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:42:00,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 16:42:00,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 16:42:00,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 16:42:00,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 16:42:00,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 16:42:00,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 16:42:00,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 16:42:00,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 16:42:00,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 16:42:00,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:42:00,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:42:00,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:42:00,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:42:00,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:42:00,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:42:00,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:42:00,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:42:00,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:42:00,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:42:00,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:42:00,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:42:00,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 16:42:00,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 16:42:00,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 16:42:00,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 16:42:00,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 16:42:00,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 16:42:00,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 16:42:00,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 16:42:00,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 16:42:00,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 16:42:00,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 16:42:00,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 16:42:00,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 16:42:00,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 16:42:00,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:42:00,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:42:00,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:42:00,117 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 [2021-02-21 16:42:00,153 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:42:00,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:42:00,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:42:00,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:42:00,158 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:42:00,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:42:00,159 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:42:00,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:42:00,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:42:00,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:42:00,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:42:00,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:42:00,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:42:00,163 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:42:00,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:42:00,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:42:00,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:42:00,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:42:00,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:42:00,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:42:00,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:42:00,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:42:00,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:42:00,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:42:00,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:42:00,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:42:00,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:42:00,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:42:00,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:42:00,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:42:00,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:42:00,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:42:00,689 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:42:00,690 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:42:00,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2021-02-21 16:42:00,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c071d68f5/3b49b3ed0e2a4f1d97d6c4d8d399eb7f/FLAGe22bf5984 [2021-02-21 16:42:01,451 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:42:01,452 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2021-02-21 16:42:01,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c071d68f5/3b49b3ed0e2a4f1d97d6c4d8d399eb7f/FLAGe22bf5984 [2021-02-21 16:42:01,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c071d68f5/3b49b3ed0e2a4f1d97d6c4d8d399eb7f [2021-02-21 16:42:01,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:42:01,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:42:01,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:42:01,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:42:01,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:42:01,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:42:01" (1/1) ... [2021-02-21 16:42:01,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7787227b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:42:01, skipping insertion in model container [2021-02-21 16:42:01,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:42:01" (1/1) ... [2021-02-21 16:42:01,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:42:01,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:42:02,182 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] [2021-02-21 16:42:02,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:42:02,474 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:42:02,487 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] [2021-02-21 16:42:02,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:42:02,641 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:42:02,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:42:02 WrapperNode [2021-02-21 16:42:02,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:42:02,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:42:02,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:42:02,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:42:02,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:42:02" (1/1) ... [2021-02-21 16:42:02,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:42:02" (1/1) ... [2021-02-21 16:42:02,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:42:02" (1/1) ... [2021-02-21 16:42:02,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:42:02" (1/1) ... [2021-02-21 16:42:02,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:42:02" (1/1) ... [2021-02-21 16:42:02,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:42:02" (1/1) ... [2021-02-21 16:42:02,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:42:02" (1/1) ... [2021-02-21 16:42:02,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:42:02,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:42:02,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:42:02,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:42:02,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:42:02" (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 [2021-02-21 16:42:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:42:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:42:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:42:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-21 16:42:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2021-02-21 16:42:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2021-02-21 16:42:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2021-02-21 16:42:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2021-02-21 16:42:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2021-02-21 16:42:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2021-02-21 16:42:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2021-02-21 16:42:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2021-02-21 16:42:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2021-02-21 16:42:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2021-02-21 16:42:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2021-02-21 16:42:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2021-02-21 16:42:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2021-02-21 16:42:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2021-02-21 16:42:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2021-02-21 16:42:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2021-02-21 16:42:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2021-02-21 16:42:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2021-02-21 16:42:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2021-02-21 16:42:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2021-02-21 16:42:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2021-02-21 16:42:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2021-02-21 16:42:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2021-02-21 16:42:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2021-02-21 16:42:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2021-02-21 16:42:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2021-02-21 16:42:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2021-02-21 16:42:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2021-02-21 16:42:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-21 16:42:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-21 16:42:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-21 16:42:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-21 16:42:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-21 16:42:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-21 16:42:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-21 16:42:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-02-21 16:42:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-21 16:42:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-21 16:42:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-21 16:42:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-21 16:42:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-21 16:42:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:42:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:42:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:42:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:42:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:42:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 16:42:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-21 16:42:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2021-02-21 16:42:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2021-02-21 16:42:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2021-02-21 16:42:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2021-02-21 16:42:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2021-02-21 16:42:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2021-02-21 16:42:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2021-02-21 16:42:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2021-02-21 16:42:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2021-02-21 16:42:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2021-02-21 16:42:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2021-02-21 16:42:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2021-02-21 16:42:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2021-02-21 16:42:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2021-02-21 16:42:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-02-21 16:42:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure master [2021-02-21 16:42:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2021-02-21 16:42:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2021-02-21 16:42:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2021-02-21 16:42:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2021-02-21 16:42:03,032 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2021-02-21 16:42:03,032 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2021-02-21 16:42:03,032 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2021-02-21 16:42:03,032 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2021-02-21 16:42:03,033 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2021-02-21 16:42:03,033 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2021-02-21 16:42:03,034 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2021-02-21 16:42:03,034 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2021-02-21 16:42:03,034 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2021-02-21 16:42:03,034 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-21 16:42:03,034 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-21 16:42:03,035 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-21 16:42:03,036 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-21 16:42:03,036 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-21 16:42:03,036 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-21 16:42:03,037 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-21 16:42:03,037 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-21 16:42:03,037 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-21 16:42:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-21 16:42:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-21 16:42:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-21 16:42:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:42:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:42:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:42:03,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:42:03,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:42:03,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:42:03,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:42:04,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:42:04,920 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-02-21 16:42:04,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:42:04 BoogieIcfgContainer [2021-02-21 16:42:04,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:42:04,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:42:04,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:42:04,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:42:04,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:42:01" (1/3) ... [2021-02-21 16:42:04,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2f7619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:42:04, skipping insertion in model container [2021-02-21 16:42:04,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:42:02" (2/3) ... [2021-02-21 16:42:04,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2f7619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:42:04, skipping insertion in model container [2021-02-21 16:42:04,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:42:04" (3/3) ... [2021-02-21 16:42:04,947 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2021-02-21 16:42:04,955 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:42:04,962 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:42:04,984 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:42:05,018 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:42:05,018 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:42:05,018 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:42:05,018 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:42:05,018 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:42:05,019 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:42:05,019 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:42:05,019 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:42:05,052 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2021-02-21 16:42:05,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:42:05,075 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:42:05,076 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] [2021-02-21 16:42:05,077 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:42:05,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:42:05,084 INFO L82 PathProgramCache]: Analyzing trace with hash -116389850, now seen corresponding path program 1 times [2021-02-21 16:42:05,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:42:05,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597883861] [2021-02-21 16:42:05,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:42:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:05,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:05,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:05,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:05,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:42:05,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:05,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,336 WARN L202 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:42:06,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:42:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:42:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:42:06,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:42:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:42:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 16:42:06,682 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-21 16:42:06,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:42:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:42:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:42:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:42:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:42:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:42:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:42:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:42:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:42:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:42:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:42:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:42:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:42:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:42:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:42:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:42:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:42:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:06,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:42:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:06,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:06,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:07,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:42:07,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597883861] [2021-02-21 16:42:07,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:42:07,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 16:42:07,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775949868] [2021-02-21 16:42:07,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 16:42:07,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:42:07,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 16:42:07,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-21 16:42:07,118 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2021-02-21 16:42:07,642 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 16:42:07,845 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 16:42:08,349 WARN L202 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 16:42:08,557 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:42:18,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:42:18,304 INFO L93 Difference]: Finished difference Result 1304 states and 2146 transitions. [2021-02-21 16:42:18,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 16:42:18,307 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2021-02-21 16:42:18,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:42:18,333 INFO L225 Difference]: With dead ends: 1304 [2021-02-21 16:42:18,333 INFO L226 Difference]: Without dead ends: 810 [2021-02-21 16:42:18,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-02-21 16:42:18,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2021-02-21 16:42:18,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2021-02-21 16:42:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2021-02-21 16:42:18,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2021-02-21 16:42:18,687 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2021-02-21 16:42:18,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:42:18,689 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2021-02-21 16:42:18,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 16:42:18,690 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2021-02-21 16:42:18,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:42:18,713 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:42:18,714 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] [2021-02-21 16:42:18,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:42:18,715 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:42:18,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:42:18,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1589739752, now seen corresponding path program 1 times [2021-02-21 16:42:18,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:42:18,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673866865] [2021-02-21 16:42:18,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:42:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:18,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:18,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:18,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:18,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:42:18,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:18,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,308 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:42:19,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:42:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:42:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:42:19,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:42:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:42:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 16:42:19,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:42:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:42:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:42:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:42:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:42:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:42:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:42:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:42:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:42:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:42:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:42:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:42:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:42:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:42:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:42:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:42:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:42:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:42:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:19,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:19,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:42:19,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673866865] [2021-02-21 16:42:19,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:42:19,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 16:42:19,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213137055] [2021-02-21 16:42:19,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 16:42:19,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:42:19,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 16:42:19,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-21 16:42:19,889 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2021-02-21 16:42:20,433 WARN L202 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 16:42:20,598 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 16:42:21,037 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 16:42:21,274 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:42:30,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:42:30,450 INFO L93 Difference]: Finished difference Result 1275 states and 1946 transitions. [2021-02-21 16:42:30,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-21 16:42:30,451 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2021-02-21 16:42:30,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:42:30,464 INFO L225 Difference]: With dead ends: 1275 [2021-02-21 16:42:30,464 INFO L226 Difference]: Without dead ends: 810 [2021-02-21 16:42:30,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-02-21 16:42:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2021-02-21 16:42:30,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2021-02-21 16:42:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2021-02-21 16:42:30,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2021-02-21 16:42:30,617 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2021-02-21 16:42:30,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:42:30,618 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2021-02-21 16:42:30,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 16:42:30,620 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2021-02-21 16:42:30,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:42:30,625 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:42:30,626 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] [2021-02-21 16:42:30,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 16:42:30,626 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:42:30,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:42:30,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1735337046, now seen corresponding path program 1 times [2021-02-21 16:42:30,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:42:30,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22003570] [2021-02-21 16:42:30,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:42:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:30,745 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-21 16:42:30,746 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-21 16:42:30,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:30,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:42:30,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:30,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:42:30,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:30,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,202 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:42:31,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:42:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:42:31,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:42:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:42:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:42:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:42:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:42:31,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:42:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:42:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:42:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:42:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:42:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:42:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:42:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:42:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:42:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:42:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:42:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:42:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:42:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:42:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:42:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:42:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:42:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:31,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:31,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:31,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:42:31,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22003570] [2021-02-21 16:42:31,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:42:31,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 16:42:31,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142777363] [2021-02-21 16:42:31,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 16:42:31,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:42:31,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 16:42:31,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-21 16:42:31,682 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2021-02-21 16:42:32,217 WARN L202 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 16:42:32,419 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:42:32,668 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:42:41,566 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 16:42:41,820 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 16:42:48,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:42:48,706 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2021-02-21 16:42:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-21 16:42:48,706 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2021-02-21 16:42:48,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:42:48,717 INFO L225 Difference]: With dead ends: 1991 [2021-02-21 16:42:48,717 INFO L226 Difference]: Without dead ends: 1532 [2021-02-21 16:42:48,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-02-21 16:42:48,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2021-02-21 16:42:48,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2021-02-21 16:42:48,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2021-02-21 16:42:48,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2021-02-21 16:42:48,951 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2021-02-21 16:42:48,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:42:48,952 INFO L480 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2021-02-21 16:42:48,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 16:42:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2021-02-21 16:42:48,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:42:48,956 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:42:48,956 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] [2021-02-21 16:42:48,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 16:42:48,957 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:42:48,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:42:48,958 INFO L82 PathProgramCache]: Analyzing trace with hash 160516877, now seen corresponding path program 1 times [2021-02-21 16:42:48,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:42:48,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328964112] [2021-02-21 16:42:48,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:42:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:42:49,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:42:49,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:42:49,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,552 WARN L202 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:42:49,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:42:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:42:49,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:42:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:42:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:42:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:42:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:42:49,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:42:49,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:42:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:42:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:42:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:42:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:42:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:42:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:42:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:42:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:42:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:42:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:42:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:42:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:42:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:42:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:42:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:42:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:49,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:42:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:49,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:49,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:42:50,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:42:50,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328964112] [2021-02-21 16:42:50,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:42:50,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 16:42:50,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446849240] [2021-02-21 16:42:50,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 16:42:50,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:42:50,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 16:42:50,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-21 16:42:50,050 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 9 states. [2021-02-21 16:42:50,519 WARN L202 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 16:42:50,715 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:42:50,978 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:42:59,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:42:59,182 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2021-02-21 16:42:59,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 16:42:59,183 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2021-02-21 16:42:59,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:42:59,196 INFO L225 Difference]: With dead ends: 2455 [2021-02-21 16:42:59,196 INFO L226 Difference]: Without dead ends: 1521 [2021-02-21 16:42:59,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-02-21 16:42:59,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2021-02-21 16:42:59,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2021-02-21 16:42:59,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2021-02-21 16:42:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2021-02-21 16:42:59,575 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2021-02-21 16:42:59,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:42:59,576 INFO L480 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2021-02-21 16:42:59,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 16:42:59,576 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2021-02-21 16:42:59,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:42:59,581 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:42:59,581 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] [2021-02-21 16:42:59,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 16:42:59,581 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:42:59,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:42:59,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1234250121, now seen corresponding path program 1 times [2021-02-21 16:42:59,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:42:59,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788567141] [2021-02-21 16:42:59,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:42:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:42:59,701 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-21 16:42:59,702 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-21 16:42:59,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:59,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:42:59,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:59,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:42:59,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:42:59,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,141 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:43:00,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:43:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:00,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:43:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:43:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:43:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:43:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:00,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:00,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:43:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:43:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:43:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:43:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:43:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:43:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:43:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:43:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:43:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:43:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:43:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:43:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:43:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:43:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:43:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:43:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:43:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:00,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:00,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:00,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:43:00,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788567141] [2021-02-21 16:43:00,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:43:00,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:43:00,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995054495] [2021-02-21 16:43:00,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:43:00,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:43:00,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:43:00,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:43:00,715 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2021-02-21 16:43:01,295 WARN L202 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 16:43:01,463 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:43:01,723 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:43:11,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:43:11,095 INFO L93 Difference]: Finished difference Result 2455 states and 3730 transitions. [2021-02-21 16:43:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 16:43:11,095 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:43:11,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:43:11,106 INFO L225 Difference]: With dead ends: 2455 [2021-02-21 16:43:11,106 INFO L226 Difference]: Without dead ends: 1521 [2021-02-21 16:43:11,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-21 16:43:11,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2021-02-21 16:43:11,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2021-02-21 16:43:11,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2021-02-21 16:43:11,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2021-02-21 16:43:11,354 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2021-02-21 16:43:11,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:43:11,355 INFO L480 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2021-02-21 16:43:11,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:43:11,355 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2021-02-21 16:43:11,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:43:11,359 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:43:11,360 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] [2021-02-21 16:43:11,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 16:43:11,360 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:43:11,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:43:11,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1683065083, now seen corresponding path program 1 times [2021-02-21 16:43:11,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:43:11,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604593451] [2021-02-21 16:43:11,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:43:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:11,434 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-21 16:43:11,435 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-21 16:43:11,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:11,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:43:11,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:11,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:43:11,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:11,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:11,865 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:43:11,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:43:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:11,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:11,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:11,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:43:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:11,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:11,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:11,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:43:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:11,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:11,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:11,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:43:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:43:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:12,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:12,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:43:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:43:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:43:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:43:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:43:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:43:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:43:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:43:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:43:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:43:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:43:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:43:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:43:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:43:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:43:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:43:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:43:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:12,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:12,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:12,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:43:12,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604593451] [2021-02-21 16:43:12,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:43:12,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:43:12,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534189828] [2021-02-21 16:43:12,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:43:12,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:43:12,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:43:12,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:43:12,348 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2021-02-21 16:43:12,809 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 16:43:12,983 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:43:13,239 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:43:22,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:43:22,468 INFO L93 Difference]: Finished difference Result 2455 states and 3712 transitions. [2021-02-21 16:43:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 16:43:22,469 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:43:22,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:43:22,479 INFO L225 Difference]: With dead ends: 2455 [2021-02-21 16:43:22,480 INFO L226 Difference]: Without dead ends: 1521 [2021-02-21 16:43:22,484 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 [2021-02-21 16:43:22,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2021-02-21 16:43:22,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2021-02-21 16:43:22,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2021-02-21 16:43:22,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1405 transitions. [2021-02-21 16:43:22,738 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1405 transitions. Word has length 240 [2021-02-21 16:43:22,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:43:22,738 INFO L480 AbstractCegarLoop]: Abstraction has 965 states and 1405 transitions. [2021-02-21 16:43:22,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:43:22,739 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1405 transitions. [2021-02-21 16:43:22,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:43:22,749 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:43:22,749 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] [2021-02-21 16:43:22,750 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 16:43:22,750 INFO L428 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:43:22,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:43:22,751 INFO L82 PathProgramCache]: Analyzing trace with hash 439585289, now seen corresponding path program 1 times [2021-02-21 16:43:22,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:43:22,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830465675] [2021-02-21 16:43:22,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:43:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:22,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:22,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:22,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:22,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:22,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:22,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:22,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:22,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,288 WARN L202 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:43:23,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:43:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:23,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:43:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:43:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:43:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:43:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:43:23,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 16:43:23,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:43:23,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:43:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:43:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:43:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:43:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:43:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:43:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:43:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:43:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:43:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:43:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:43:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:43:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:43:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:43:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:43:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:43:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:43:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:23,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:23,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:43:23,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830465675] [2021-02-21 16:43:23,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:43:23,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:43:23,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188866407] [2021-02-21 16:43:23,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:43:23,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:43:23,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:43:23,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:43:23,759 INFO L87 Difference]: Start difference. First operand 965 states and 1405 transitions. Second operand 10 states. [2021-02-21 16:43:24,253 WARN L202 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-21 16:43:24,426 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:43:24,677 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:43:25,828 WARN L202 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2021-02-21 16:43:25,976 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-21 16:43:26,934 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2021-02-21 16:43:30,215 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 16:43:32,652 WARN L202 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2021-02-21 16:43:45,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:43:45,323 INFO L93 Difference]: Finished difference Result 4067 states and 6196 transitions. [2021-02-21 16:43:45,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-21 16:43:45,323 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:43:45,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:43:45,343 INFO L225 Difference]: With dead ends: 4067 [2021-02-21 16:43:45,343 INFO L226 Difference]: Without dead ends: 3133 [2021-02-21 16:43:45,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2021-02-21 16:43:45,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3133 states. [2021-02-21 16:43:45,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3133 to 1988. [2021-02-21 16:43:45,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1988 states. [2021-02-21 16:43:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2940 transitions. [2021-02-21 16:43:45,953 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2940 transitions. Word has length 240 [2021-02-21 16:43:45,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:43:45,953 INFO L480 AbstractCegarLoop]: Abstraction has 1988 states and 2940 transitions. [2021-02-21 16:43:45,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:43:45,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2940 transitions. [2021-02-21 16:43:45,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:43:45,956 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:43:45,957 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] [2021-02-21 16:43:45,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 16:43:45,957 INFO L428 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:43:45,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:43:45,958 INFO L82 PathProgramCache]: Analyzing trace with hash -432825273, now seen corresponding path program 1 times [2021-02-21 16:43:45,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:43:45,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653924613] [2021-02-21 16:43:45,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:43:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,051 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-21 16:43:46,052 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-21 16:43:46,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:43:46,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:43:46,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,485 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:43:46,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:43:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:46,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:43:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:43:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:43:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:43:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:46,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:46,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:43:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:43:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:43:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:43:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:43:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:43:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:43:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:43:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:43:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:43:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:43:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:43:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:43:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:43:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:43:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:43:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:43:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:46,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:46,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:46,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:43:46,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653924613] [2021-02-21 16:43:46,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:43:46,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:43:46,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49107379] [2021-02-21 16:43:46,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:43:46,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:43:46,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:43:46,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:43:46,967 INFO L87 Difference]: Start difference. First operand 1988 states and 2940 transitions. Second operand 10 states. [2021-02-21 16:43:47,441 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 16:43:47,629 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:43:47,887 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:43:57,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:43:57,589 INFO L93 Difference]: Finished difference Result 5035 states and 7660 transitions. [2021-02-21 16:43:57,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 16:43:57,590 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:43:57,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:43:57,607 INFO L225 Difference]: With dead ends: 5035 [2021-02-21 16:43:57,608 INFO L226 Difference]: Without dead ends: 3080 [2021-02-21 16:43:57,615 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 [2021-02-21 16:43:57,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2021-02-21 16:43:58,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 1988. [2021-02-21 16:43:58,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1988 states. [2021-02-21 16:43:58,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2922 transitions. [2021-02-21 16:43:58,227 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2922 transitions. Word has length 240 [2021-02-21 16:43:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:43:58,227 INFO L480 AbstractCegarLoop]: Abstraction has 1988 states and 2922 transitions. [2021-02-21 16:43:58,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:43:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2922 transitions. [2021-02-21 16:43:58,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:43:58,230 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:43:58,230 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] [2021-02-21 16:43:58,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-21 16:43:58,230 INFO L428 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:43:58,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:43:58,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1976983477, now seen corresponding path program 1 times [2021-02-21 16:43:58,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:43:58,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989263122] [2021-02-21 16:43:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:43:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:58,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:58,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:58,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:58,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:58,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:58,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:58,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:58,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:58,762 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:43:58,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:43:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:58,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:58,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:43:58,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:43:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:58,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:58,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:58,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:43:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:58,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:58,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:58,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:43:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:58,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:58,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:58,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:43:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:58,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:58,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:43:58,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:58,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 16:43:59,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:43:59,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:43:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:43:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:43:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:43:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:43:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:43:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:43:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:43:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:43:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:43:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:43:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:43:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:43:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:43:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:43:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:43:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:43:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:43:59,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:43:59,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:43:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:43:59,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989263122] [2021-02-21 16:43:59,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:43:59,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:43:59,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085070324] [2021-02-21 16:43:59,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:43:59,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:43:59,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:43:59,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:43:59,222 INFO L87 Difference]: Start difference. First operand 1988 states and 2922 transitions. Second operand 10 states. [2021-02-21 16:43:59,728 WARN L202 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-21 16:43:59,916 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:44:00,177 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:44:00,948 WARN L202 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-02-21 16:44:01,094 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-21 16:44:01,888 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-21 16:44:05,279 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 16:44:07,432 WARN L202 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 16:44:20,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:44:20,773 INFO L93 Difference]: Finished difference Result 8400 states and 12882 transitions. [2021-02-21 16:44:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-21 16:44:20,773 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:44:20,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:44:20,810 INFO L225 Difference]: With dead ends: 8400 [2021-02-21 16:44:20,811 INFO L226 Difference]: Without dead ends: 6445 [2021-02-21 16:44:20,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2021-02-21 16:44:20,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6445 states. [2021-02-21 16:44:21,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6445 to 4190. [2021-02-21 16:44:21,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4190 states. [2021-02-21 16:44:21,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6296 transitions. [2021-02-21 16:44:21,850 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6296 transitions. Word has length 240 [2021-02-21 16:44:21,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:44:21,851 INFO L480 AbstractCegarLoop]: Abstraction has 4190 states and 6296 transitions. [2021-02-21 16:44:21,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:44:21,851 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6296 transitions. [2021-02-21 16:44:21,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:44:21,854 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:44:21,854 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] [2021-02-21 16:44:21,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-21 16:44:21,854 INFO L428 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:44:21,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:44:21,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1763366391, now seen corresponding path program 1 times [2021-02-21 16:44:21,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:44:21,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333934190] [2021-02-21 16:44:21,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:44:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:21,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:21,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:44:21,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:21,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:44:21,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:21,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:44:21,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:21,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,362 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:44:22,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:44:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:44:22,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:44:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:44:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:44:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:44:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:44:22,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 16:44:22,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:44:22,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:44:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:44:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:44:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:44:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:44:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:44:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:44:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:44:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:44:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:44:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:44:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:44:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:44:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:44:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:44:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:44:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:44:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:22,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:22,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:44:22,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333934190] [2021-02-21 16:44:22,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:44:22,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:44:22,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667434351] [2021-02-21 16:44:22,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:44:22,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:44:22,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:44:22,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:44:22,787 INFO L87 Difference]: Start difference. First operand 4190 states and 6296 transitions. Second operand 10 states. [2021-02-21 16:44:23,312 WARN L202 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-21 16:44:23,499 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:44:23,761 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:44:24,402 WARN L202 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-02-21 16:44:24,532 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-21 16:44:25,159 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-21 16:44:28,147 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 16:44:30,220 WARN L202 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 16:44:42,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:44:42,235 INFO L93 Difference]: Finished difference Result 17694 states and 27624 transitions. [2021-02-21 16:44:42,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-21 16:44:42,236 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:44:42,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:44:42,298 INFO L225 Difference]: With dead ends: 17694 [2021-02-21 16:44:42,299 INFO L226 Difference]: Without dead ends: 13537 [2021-02-21 16:44:42,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2021-02-21 16:44:42,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13537 states. [2021-02-21 16:44:44,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13537 to 9062. [2021-02-21 16:44:44,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9062 states. [2021-02-21 16:44:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9062 states to 9062 states and 14024 transitions. [2021-02-21 16:44:44,176 INFO L78 Accepts]: Start accepts. Automaton has 9062 states and 14024 transitions. Word has length 240 [2021-02-21 16:44:44,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:44:44,177 INFO L480 AbstractCegarLoop]: Abstraction has 9062 states and 14024 transitions. [2021-02-21 16:44:44,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:44:44,177 INFO L276 IsEmpty]: Start isEmpty. Operand 9062 states and 14024 transitions. [2021-02-21 16:44:44,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:44:44,180 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:44:44,180 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] [2021-02-21 16:44:44,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-21 16:44:44,180 INFO L428 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:44:44,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:44:44,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1479380853, now seen corresponding path program 1 times [2021-02-21 16:44:44,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:44:44,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967707918] [2021-02-21 16:44:44,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:44:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,245 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-21 16:44:44,246 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-21 16:44:44,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:44:44,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:44:44,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,689 WARN L202 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:44:44,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:44:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:44:44,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:44:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:44:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:44:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:44:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:44:44,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:44:44,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:44:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:44:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:44:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:44:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:44:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:44:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:44:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:44:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:44:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:44:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:44:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:44:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:44:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:44:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:44,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:44:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:44,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:44,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:45,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:44:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:45,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:45,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:45,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:44:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:45,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:45,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:45,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:44:45,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967707918] [2021-02-21 16:44:45,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:44:45,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:44:45,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717806958] [2021-02-21 16:44:45,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:44:45,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:44:45,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:44:45,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:44:45,164 INFO L87 Difference]: Start difference. First operand 9062 states and 14024 transitions. Second operand 10 states. [2021-02-21 16:44:45,653 WARN L202 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 16:44:45,832 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:44:46,085 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:44:57,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:44:57,367 INFO L93 Difference]: Finished difference Result 22399 states and 35378 transitions. [2021-02-21 16:44:57,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 16:44:57,368 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:44:57,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:44:57,425 INFO L225 Difference]: With dead ends: 22399 [2021-02-21 16:44:57,425 INFO L226 Difference]: Without dead ends: 13370 [2021-02-21 16:44:57,557 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 [2021-02-21 16:44:57,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13370 states. [2021-02-21 16:44:59,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13370 to 9062. [2021-02-21 16:44:59,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9062 states. [2021-02-21 16:44:59,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9062 states to 9062 states and 13892 transitions. [2021-02-21 16:44:59,518 INFO L78 Accepts]: Start accepts. Automaton has 9062 states and 13892 transitions. Word has length 240 [2021-02-21 16:44:59,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:44:59,518 INFO L480 AbstractCegarLoop]: Abstraction has 9062 states and 13892 transitions. [2021-02-21 16:44:59,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:44:59,519 INFO L276 IsEmpty]: Start isEmpty. Operand 9062 states and 13892 transitions. [2021-02-21 16:44:59,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:44:59,529 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:44:59,529 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] [2021-02-21 16:44:59,529 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-21 16:44:59,529 INFO L428 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:44:59,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:44:59,530 INFO L82 PathProgramCache]: Analyzing trace with hash -144274681, now seen corresponding path program 1 times [2021-02-21 16:44:59,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:44:59,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966980669] [2021-02-21 16:44:59,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:44:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:59,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:59,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:44:59,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:59,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:44:59,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:59,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:44:59,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:59,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:44:59,970 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:44:59,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:44:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:44:59,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:44:59,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:45:00,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:45:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:45:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:45:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:45:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:45:00,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 16:45:00,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:45:00,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:45:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:45:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:45:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:45:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:45:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:45:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:45:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:45:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:45:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:45:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:45:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:45:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:45:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:45:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:45:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:45:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:45:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:00,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:00,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:45:00,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966980669] [2021-02-21 16:45:00,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:45:00,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:45:00,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106934468] [2021-02-21 16:45:00,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:45:00,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:45:00,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:45:00,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:45:00,399 INFO L87 Difference]: Start difference. First operand 9062 states and 13892 transitions. Second operand 10 states. [2021-02-21 16:45:00,853 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-21 16:45:01,102 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:45:01,374 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:45:02,577 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2021-02-21 16:45:03,427 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2021-02-21 16:45:06,288 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 16:45:08,950 WARN L202 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2021-02-21 16:45:22,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:45:22,864 INFO L93 Difference]: Finished difference Result 37826 states and 60028 transitions. [2021-02-21 16:45:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-21 16:45:22,865 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:45:22,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:45:22,978 INFO L225 Difference]: With dead ends: 37826 [2021-02-21 16:45:22,978 INFO L226 Difference]: Without dead ends: 28797 [2021-02-21 16:45:23,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2021-02-21 16:45:23,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28797 states. [2021-02-21 16:45:26,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28797 to 19922. [2021-02-21 16:45:26,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19922 states. [2021-02-21 16:45:26,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19922 states to 19922 states and 31704 transitions. [2021-02-21 16:45:26,779 INFO L78 Accepts]: Start accepts. Automaton has 19922 states and 31704 transitions. Word has length 240 [2021-02-21 16:45:26,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:45:26,780 INFO L480 AbstractCegarLoop]: Abstraction has 19922 states and 31704 transitions. [2021-02-21 16:45:26,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:45:26,780 INFO L276 IsEmpty]: Start isEmpty. Operand 19922 states and 31704 transitions. [2021-02-21 16:45:26,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:45:26,918 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:45:26,918 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] [2021-02-21 16:45:26,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-21 16:45:26,919 INFO L428 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:45:26,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:45:26,919 INFO L82 PathProgramCache]: Analyzing trace with hash -2139577403, now seen corresponding path program 1 times [2021-02-21 16:45:26,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:45:26,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181310859] [2021-02-21 16:45:26,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:45:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:26,993 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-21 16:45:26,994 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-21 16:45:26,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:26,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:45:26,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:26,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:45:26,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:26,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,457 WARN L202 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:45:27,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:45:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:45:27,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:45:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:45:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:45:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:45:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:45:27,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:45:27,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:45:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:45:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:45:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:45:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:45:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:45:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:45:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:45:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:45:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:45:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:45:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:45:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:45:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:45:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:45:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:45:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:45:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:27,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:27,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:27,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:45:27,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181310859] [2021-02-21 16:45:27,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:45:27,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:45:27,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409967942] [2021-02-21 16:45:27,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:45:27,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:45:27,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:45:27,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:45:27,912 INFO L87 Difference]: Start difference. First operand 19922 states and 31704 transitions. Second operand 10 states. [2021-02-21 16:45:28,358 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 16:45:28,528 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:45:28,764 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:45:41,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:45:41,129 INFO L93 Difference]: Finished difference Result 48407 states and 78634 transitions. [2021-02-21 16:45:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 16:45:41,130 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:45:41,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:45:41,221 INFO L225 Difference]: With dead ends: 48407 [2021-02-21 16:45:41,221 INFO L226 Difference]: Without dead ends: 28518 [2021-02-21 16:45:41,274 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 [2021-02-21 16:45:41,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28518 states. [2021-02-21 16:45:44,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28518 to 19922. [2021-02-21 16:45:44,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19922 states. [2021-02-21 16:45:44,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19922 states to 19922 states and 31332 transitions. [2021-02-21 16:45:44,986 INFO L78 Accepts]: Start accepts. Automaton has 19922 states and 31332 transitions. Word has length 240 [2021-02-21 16:45:44,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:45:44,987 INFO L480 AbstractCegarLoop]: Abstraction has 19922 states and 31332 transitions. [2021-02-21 16:45:44,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:45:44,987 INFO L276 IsEmpty]: Start isEmpty. Operand 19922 states and 31332 transitions. [2021-02-21 16:45:44,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:45:44,991 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:45:44,992 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] [2021-02-21 16:45:44,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-21 16:45:44,992 INFO L428 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:45:44,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:45:44,994 INFO L82 PathProgramCache]: Analyzing trace with hash -969737527, now seen corresponding path program 1 times [2021-02-21 16:45:44,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:45:44,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143238002] [2021-02-21 16:45:44,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:45:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:45:45,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:45:45,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:45:45,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,449 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:45:45,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:45:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:45:45,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:45:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:45:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:45:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:45:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:45:45,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 16:45:45,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:45:45,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:45:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:45:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:45:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:45:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:45:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:45:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:45:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:45:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:45:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:45:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:45:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:45:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:45:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:45:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:45:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:45:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:45:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:45:45,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:45:45,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:45:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:45:45,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143238002] [2021-02-21 16:45:45,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:45:45,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:45:45,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051321740] [2021-02-21 16:45:45,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:45:45,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:45:45,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:45:45,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:45:45,878 INFO L87 Difference]: Start difference. First operand 19922 states and 31332 transitions. Second operand 10 states. [2021-02-21 16:45:46,316 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-21 16:45:46,490 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:45:46,730 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:45:47,788 WARN L202 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2021-02-21 16:45:48,846 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2021-02-21 16:45:52,055 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 16:45:55,245 WARN L202 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2021-02-21 16:46:15,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:46:15,493 INFO L93 Difference]: Finished difference Result 82214 states and 133796 transitions. [2021-02-21 16:46:15,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-21 16:46:15,494 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:46:15,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:46:15,744 INFO L225 Difference]: With dead ends: 82214 [2021-02-21 16:46:15,744 INFO L226 Difference]: Without dead ends: 62325 [2021-02-21 16:46:15,802 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 [2021-02-21 16:46:15,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62325 states. [2021-02-21 16:46:23,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62325 to 44666. [2021-02-21 16:46:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44666 states. [2021-02-21 16:46:23,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44666 states to 44666 states and 73888 transitions. [2021-02-21 16:46:23,735 INFO L78 Accepts]: Start accepts. Automaton has 44666 states and 73888 transitions. Word has length 240 [2021-02-21 16:46:23,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:46:23,735 INFO L480 AbstractCegarLoop]: Abstraction has 44666 states and 73888 transitions. [2021-02-21 16:46:23,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:46:23,735 INFO L276 IsEmpty]: Start isEmpty. Operand 44666 states and 73888 transitions. [2021-02-21 16:46:23,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:46:23,742 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:46:23,742 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] [2021-02-21 16:46:23,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-21 16:46:23,742 INFO L428 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:46:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:46:23,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1043322105, now seen corresponding path program 1 times [2021-02-21 16:46:23,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:46:23,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871005741] [2021-02-21 16:46:23,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:46:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:23,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:23,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:46:23,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:23,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:46:23,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:23,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:46:23,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:23,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,211 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:46:24,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:46:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:46:24,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:46:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:46:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:46:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:46:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:46:24,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 16:46:24,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:46:24,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:46:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:46:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:46:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:46:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:46:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:46:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:46:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:46:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:46:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:46:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:46:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:46:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:46:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:46:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:46:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:46:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:46:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:46:24,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:46:24,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:46:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:46:24,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871005741] [2021-02-21 16:46:24,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:46:24,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:46:24,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932500132] [2021-02-21 16:46:24,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:46:24,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:46:24,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:46:24,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:46:24,598 INFO L87 Difference]: Start difference. First operand 44666 states and 73888 transitions. Second operand 10 states. [2021-02-21 16:46:25,057 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2021-02-21 16:46:25,229 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:46:25,471 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 16:46:26,070 WARN L202 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-02-21 16:46:26,727 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-21 16:46:29,898 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 16:46:33,680 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 16:47:05,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:47:05,959 INFO L93 Difference]: Finished difference Result 185259 states and 319194 transitions. [2021-02-21 16:47:05,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-21 16:47:05,960 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:47:05,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:47:06,667 INFO L225 Difference]: With dead ends: 185259 [2021-02-21 16:47:06,667 INFO L226 Difference]: Without dead ends: 140626 [2021-02-21 16:47:06,809 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 [2021-02-21 16:47:07,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140626 states. [2021-02-21 16:47:24,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140626 to 105974. [2021-02-21 16:47:24,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105974 states. [2021-02-21 16:47:25,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105974 states to 105974 states and 188216 transitions. [2021-02-21 16:47:25,418 INFO L78 Accepts]: Start accepts. Automaton has 105974 states and 188216 transitions. Word has length 240 [2021-02-21 16:47:25,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:47:25,418 INFO L480 AbstractCegarLoop]: Abstraction has 105974 states and 188216 transitions. [2021-02-21 16:47:25,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:47:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 105974 states and 188216 transitions. [2021-02-21 16:47:25,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:47:25,430 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:47:25,431 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] [2021-02-21 16:47:25,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-21 16:47:25,431 INFO L428 AbstractCegarLoop]: === Iteration 16 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:47:25,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:47:25,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1171061513, now seen corresponding path program 1 times [2021-02-21 16:47:25,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:47:25,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926575754] [2021-02-21 16:47:25,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:47:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:25,486 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-21 16:47:25,487 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-21 16:47:25,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:25,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:47:25,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:25,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:47:25,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:25,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,076 WARN L202 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:47:26,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:47:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:47:26,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:47:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:47:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:47:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:47:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:47:26,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:47:26,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:47:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:47:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:47:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:47:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:47:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:47:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:47:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:47:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:47:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:47:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:47:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:47:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:47:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:47:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:47:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:47:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:47:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:47:26,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:47:26,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:47:26,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:47:26,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926575754] [2021-02-21 16:47:26,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:47:26,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:47:26,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971506579] [2021-02-21 16:47:26,504 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:47:26,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:47:26,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:47:26,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:47:26,505 INFO L87 Difference]: Start difference. First operand 105974 states and 188216 transitions. Second operand 10 states. [2021-02-21 16:47:27,059 WARN L202 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 16:47:27,230 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:47:27,469 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:47:32,925 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 16:47:37,372 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 16:48:16,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:48:16,851 INFO L93 Difference]: Finished difference Result 281056 states and 559411 transitions. [2021-02-21 16:48:16,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-21 16:48:16,852 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2021-02-21 16:48:16,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:48:17,998 INFO L225 Difference]: With dead ends: 281056 [2021-02-21 16:48:17,998 INFO L226 Difference]: Without dead ends: 175115 [2021-02-21 16:48:18,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2021-02-21 16:48:18,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175115 states. [2021-02-21 16:48:42,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175115 to 124662. [2021-02-21 16:48:42,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124662 states. [2021-02-21 16:48:43,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124662 states to 124662 states and 208852 transitions. [2021-02-21 16:48:43,172 INFO L78 Accepts]: Start accepts. Automaton has 124662 states and 208852 transitions. Word has length 240 [2021-02-21 16:48:43,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:48:43,172 INFO L480 AbstractCegarLoop]: Abstraction has 124662 states and 208852 transitions. [2021-02-21 16:48:43,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:48:43,172 INFO L276 IsEmpty]: Start isEmpty. Operand 124662 states and 208852 transitions. [2021-02-21 16:48:43,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-02-21 16:48:43,183 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:48:43,183 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] [2021-02-21 16:48:43,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-21 16:48:43,183 INFO L428 AbstractCegarLoop]: === Iteration 17 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:48:43,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:48:43,184 INFO L82 PathProgramCache]: Analyzing trace with hash -2089661788, now seen corresponding path program 1 times [2021-02-21 16:48:43,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:48:43,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25935575] [2021-02-21 16:48:43,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:48:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:43,240 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-21 16:48:43,241 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-21 16:48:43,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:43,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:48:43,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:43,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:48:43,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:43,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:43,931 WARN L202 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 16:48:43,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:48:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:43,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:43,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:48:43,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:48:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 16:48:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 16:48:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 16:48:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:48:44,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:48:44,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-21 16:48:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:48:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 16:48:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 16:48:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-21 16:48:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 16:48:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-21 16:48:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-21 16:48:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-21 16:48:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-21 16:48:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 16:48:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 16:48:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-21 16:48:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 16:48:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-21 16:48:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 16:48:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-02-21 16:48:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:48:44,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:48:44,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:48:44,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:48:44,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25935575] [2021-02-21 16:48:44,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:48:44,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 16:48:44,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181193818] [2021-02-21 16:48:44,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:48:44,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:48:44,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:48:44,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:48:44,369 INFO L87 Difference]: Start difference. First operand 124662 states and 208852 transitions. Second operand 10 states. [2021-02-21 16:48:44,812 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 16:48:44,982 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:48:45,310 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 16:48:50,259 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-21 16:48:51,131 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 16:48:55,552 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 127