/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 02:21:33,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 02:21:33,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 02:21:33,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 02:21:33,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 02:21:33,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 02:21:33,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 02:21:33,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 02:21:33,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 02:21:33,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 02:21:33,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 02:21:33,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 02:21:33,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 02:21:33,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 02:21:33,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 02:21:33,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 02:21:33,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 02:21:33,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 02:21:33,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 02:21:33,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 02:21:33,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 02:21:33,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 02:21:33,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 02:21:33,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 02:21:33,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 02:21:33,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 02:21:33,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 02:21:33,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 02:21:33,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 02:21:33,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 02:21:33,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 02:21:33,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 02:21:33,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 02:21:33,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 02:21:33,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 02:21:33,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 02:21:33,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 02:21:33,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 02:21:33,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 02:21:33,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 02:21:33,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 02:21:33,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 02:21:33,592 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 02:21:33,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 02:21:33,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 02:21:33,594 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 02:21:33,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 02:21:33,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 02:21:33,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 02:21:33,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 02:21:33,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 02:21:33,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 02:21:33,596 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 02:21:33,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 02:21:33,597 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 02:21:33,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 02:21:33,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 02:21:33,598 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 02:21:33,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 02:21:33,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 02:21:33,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 02:21:33,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 02:21:33,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 02:21:33,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 02:21:33,599 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 02:21:33,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 02:21:33,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 02:21:33,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 02:21:33,995 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 02:21:33,996 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 02:21:33,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-11-07 02:21:34,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/021f7d2f5/b685c9acbdfb4a80944db21faea6295e/FLAG3dcad49a4 [2020-11-07 02:21:34,789 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 02:21:34,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-11-07 02:21:34,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/021f7d2f5/b685c9acbdfb4a80944db21faea6295e/FLAG3dcad49a4 [2020-11-07 02:21:35,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/021f7d2f5/b685c9acbdfb4a80944db21faea6295e [2020-11-07 02:21:35,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 02:21:35,109 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 02:21:35,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 02:21:35,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 02:21:35,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 02:21:35,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:35" (1/1) ... [2020-11-07 02:21:35,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5a2305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:35, skipping insertion in model container [2020-11-07 02:21:35,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:35" (1/1) ... [2020-11-07 02:21:35,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 02:21:35,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 02:21:35,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 02:21:35,782 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 02:21:35,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 02:21:35,920 INFO L208 MainTranslator]: Completed translation [2020-11-07 02:21:35,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:35 WrapperNode [2020-11-07 02:21:35,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 02:21:35,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 02:21:35,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 02:21:35,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 02:21:35,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:35" (1/1) ... [2020-11-07 02:21:35,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:35" (1/1) ... [2020-11-07 02:21:35,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:35" (1/1) ... [2020-11-07 02:21:35,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:35" (1/1) ... [2020-11-07 02:21:36,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:35" (1/1) ... [2020-11-07 02:21:36,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:35" (1/1) ... [2020-11-07 02:21:36,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:35" (1/1) ... [2020-11-07 02:21:36,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 02:21:36,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 02:21:36,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 02:21:36,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 02:21:36,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 02:21:36,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 02:21:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 02:21:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 02:21:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-11-07 02:21:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-11-07 02:21:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-11-07 02:21:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-11-07 02:21:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-11-07 02:21:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-11-07 02:21:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-11-07 02:21:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-11-07 02:21:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-11-07 02:21:36,187 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-11-07 02:21:36,187 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-11-07 02:21:36,187 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-11-07 02:21:36,187 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-11-07 02:21:36,188 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-11-07 02:21:36,188 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-11-07 02:21:36,188 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-11-07 02:21:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-11-07 02:21:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-11-07 02:21:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-11-07 02:21:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-11-07 02:21:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-11-07 02:21:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-11-07 02:21:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-11-07 02:21:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-11-07 02:21:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-11-07 02:21:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-11-07 02:21:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-11-07 02:21:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-11-07 02:21:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-11-07 02:21:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-11-07 02:21:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-11-07 02:21:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-11-07 02:21:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-11-07 02:21:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-11-07 02:21:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-11-07 02:21:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-11-07 02:21:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-11-07 02:21:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-11-07 02:21:36,196 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-11-07 02:21:36,196 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-11-07 02:21:36,196 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-11-07 02:21:36,196 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-11-07 02:21:36,196 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 02:21:36,196 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 02:21:36,196 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 02:21:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 02:21:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 02:21:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 02:21:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-11-07 02:21:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-11-07 02:21:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-11-07 02:21:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-11-07 02:21:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-11-07 02:21:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-11-07 02:21:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-11-07 02:21:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-11-07 02:21:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-11-07 02:21:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-11-07 02:21:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-11-07 02:21:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-11-07 02:21:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-11-07 02:21:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-11-07 02:21:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-11-07 02:21:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-11-07 02:21:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-11-07 02:21:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-11-07 02:21:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-11-07 02:21:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-11-07 02:21:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-11-07 02:21:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-11-07 02:21:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-11-07 02:21:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-11-07 02:21:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-11-07 02:21:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-11-07 02:21:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-11-07 02:21:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-11-07 02:21:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-11-07 02:21:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-11-07 02:21:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-11-07 02:21:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-11-07 02:21:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-11-07 02:21:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-11-07 02:21:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-11-07 02:21:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-11-07 02:21:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-11-07 02:21:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-11-07 02:21:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-11-07 02:21:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-11-07 02:21:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-11-07 02:21:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-11-07 02:21:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 02:21:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 02:21:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 02:21:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 02:21:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 02:21:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 02:21:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 02:21:37,623 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 02:21:37,623 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-11-07 02:21:37,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:21:37 BoogieIcfgContainer [2020-11-07 02:21:37,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 02:21:37,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 02:21:37,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 02:21:37,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 02:21:37,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:21:35" (1/3) ... [2020-11-07 02:21:37,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@992a1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:21:37, skipping insertion in model container [2020-11-07 02:21:37,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:35" (2/3) ... [2020-11-07 02:21:37,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@992a1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:21:37, skipping insertion in model container [2020-11-07 02:21:37,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:21:37" (3/3) ... [2020-11-07 02:21:37,638 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-11-07 02:21:37,659 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 02:21:37,665 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 02:21:37,683 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 02:21:37,722 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 02:21:37,722 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 02:21:37,722 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 02:21:37,722 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 02:21:37,724 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 02:21:37,724 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 02:21:37,724 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 02:21:37,724 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 02:21:37,772 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states. [2020-11-07 02:21:37,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-11-07 02:21:37,811 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:21:37,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:21:37,813 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:21:37,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:21:37,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1880609058, now seen corresponding path program 1 times [2020-11-07 02:21:37,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:21:37,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520780647] [2020-11-07 02:21:37,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:21:37,916 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:21:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:38,983 WARN L194 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-07 02:21:38,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:21:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 02:21:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 02:21:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-11-07 02:21:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-07 02:21:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 02:21:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 02:21:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 02:21:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 02:21:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-11-07 02:21:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 02:21:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-11-07 02:21:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-11-07 02:21:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 02:21:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-11-07 02:21:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 02:21:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-11-07 02:21:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 02:21:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 02:21:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-11-07 02:21:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-11-07 02:21:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-11-07 02:21:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:39,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:21:39,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520780647] [2020-11-07 02:21:39,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:21:39,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 02:21:39,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779004498] [2020-11-07 02:21:39,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 02:21:39,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:21:39,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 02:21:39,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-07 02:21:39,874 INFO L87 Difference]: Start difference. First operand 885 states. Second operand 8 states. [2020-11-07 02:21:40,170 WARN L194 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-11-07 02:21:40,500 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-07 02:21:40,720 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-07 02:21:41,474 WARN L194 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-07 02:21:41,661 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-07 02:21:41,824 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-07 02:21:42,430 WARN L194 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-07 02:21:42,708 WARN L194 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-07 02:21:43,319 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-07 02:21:48,632 WARN L194 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-11-07 02:21:54,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:21:54,735 INFO L93 Difference]: Finished difference Result 2271 states and 3115 transitions. [2020-11-07 02:21:54,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 02:21:54,737 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 395 [2020-11-07 02:21:54,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:21:54,776 INFO L225 Difference]: With dead ends: 2271 [2020-11-07 02:21:54,776 INFO L226 Difference]: Without dead ends: 1483 [2020-11-07 02:21:54,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-11-07 02:21:54,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2020-11-07 02:21:55,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 871. [2020-11-07 02:21:55,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2020-11-07 02:21:55,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1099 transitions. [2020-11-07 02:21:55,423 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1099 transitions. Word has length 395 [2020-11-07 02:21:55,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:21:55,424 INFO L481 AbstractCegarLoop]: Abstraction has 871 states and 1099 transitions. [2020-11-07 02:21:55,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 02:21:55,424 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1099 transitions. [2020-11-07 02:21:55,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-11-07 02:21:55,435 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:21:55,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:21:55,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 02:21:55,436 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:21:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:21:55,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1362717502, now seen corresponding path program 1 times [2020-11-07 02:21:55,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:21:55,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117204934] [2020-11-07 02:21:55,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:21:55,443 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:21:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,062 WARN L194 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-07 02:21:56,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:21:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 02:21:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 02:21:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-11-07 02:21:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,385 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-07 02:21:56,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-07 02:21:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 02:21:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 02:21:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 02:21:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 02:21:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-11-07 02:21:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 02:21:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-11-07 02:21:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-11-07 02:21:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 02:21:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-11-07 02:21:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 02:21:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-11-07 02:21:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 02:21:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 02:21:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-11-07 02:21:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-11-07 02:21:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-11-07 02:21:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:21:56,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:21:56,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117204934] [2020-11-07 02:21:56,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:21:56,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 02:21:56,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765827704] [2020-11-07 02:21:56,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 02:21:56,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:21:56,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 02:21:56,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-07 02:21:56,799 INFO L87 Difference]: Start difference. First operand 871 states and 1099 transitions. Second operand 8 states. [2020-11-07 02:21:57,020 WARN L194 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-11-07 02:21:57,268 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-07 02:21:58,159 WARN L194 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-07 02:21:58,343 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-07 02:21:58,518 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-07 02:21:59,069 WARN L194 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-07 02:21:59,291 WARN L194 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-07 02:22:04,825 WARN L194 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-11-07 02:22:10,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:22:10,624 INFO L93 Difference]: Finished difference Result 2237 states and 2915 transitions. [2020-11-07 02:22:10,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 02:22:10,625 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 395 [2020-11-07 02:22:10,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:22:10,636 INFO L225 Difference]: With dead ends: 2237 [2020-11-07 02:22:10,637 INFO L226 Difference]: Without dead ends: 1482 [2020-11-07 02:22:10,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-11-07 02:22:10,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2020-11-07 02:22:11,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 870. [2020-11-07 02:22:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 870 states. [2020-11-07 02:22:11,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1097 transitions. [2020-11-07 02:22:11,120 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1097 transitions. Word has length 395 [2020-11-07 02:22:11,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:22:11,121 INFO L481 AbstractCegarLoop]: Abstraction has 870 states and 1097 transitions. [2020-11-07 02:22:11,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 02:22:11,121 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1097 transitions. [2020-11-07 02:22:11,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-11-07 02:22:11,125 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:22:11,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:22:11,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 02:22:11,126 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:22:11,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:22:11,127 INFO L82 PathProgramCache]: Analyzing trace with hash -631777378, now seen corresponding path program 1 times [2020-11-07 02:22:11,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:22:11,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68128791] [2020-11-07 02:22:11,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:22:11,131 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:22:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,617 WARN L194 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-07 02:22:11,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:22:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 02:22:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 02:22:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-11-07 02:22:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-07 02:22:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 02:22:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 02:22:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 02:22:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 02:22:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-11-07 02:22:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 02:22:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-11-07 02:22:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-11-07 02:22:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 02:22:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-11-07 02:22:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 02:22:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-11-07 02:22:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 02:22:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 02:22:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-11-07 02:22:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-11-07 02:22:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:11,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-11-07 02:22:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:12,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:22:12,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68128791] [2020-11-07 02:22:12,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:22:12,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 02:22:12,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543632065] [2020-11-07 02:22:12,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 02:22:12,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:22:12,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 02:22:12,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-07 02:22:12,163 INFO L87 Difference]: Start difference. First operand 870 states and 1097 transitions. Second operand 8 states. [2020-11-07 02:22:12,405 WARN L194 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-11-07 02:22:12,634 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-07 02:22:13,518 WARN L194 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-07 02:22:13,733 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-07 02:22:13,955 WARN L194 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-07 02:22:14,524 WARN L194 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-07 02:22:14,767 WARN L194 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-07 02:22:20,283 WARN L194 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-11-07 02:22:26,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:22:26,079 INFO L93 Difference]: Finished difference Result 2230 states and 2905 transitions. [2020-11-07 02:22:26,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 02:22:26,081 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 395 [2020-11-07 02:22:26,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:22:26,091 INFO L225 Difference]: With dead ends: 2230 [2020-11-07 02:22:26,091 INFO L226 Difference]: Without dead ends: 1481 [2020-11-07 02:22:26,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-11-07 02:22:26,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2020-11-07 02:22:26,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 869. [2020-11-07 02:22:26,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-11-07 02:22:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1095 transitions. [2020-11-07 02:22:26,526 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1095 transitions. Word has length 395 [2020-11-07 02:22:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:22:26,526 INFO L481 AbstractCegarLoop]: Abstraction has 869 states and 1095 transitions. [2020-11-07 02:22:26,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 02:22:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1095 transitions. [2020-11-07 02:22:26,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-11-07 02:22:26,530 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:22:26,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:22:26,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 02:22:26,531 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:22:26,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:22:26,532 INFO L82 PathProgramCache]: Analyzing trace with hash 22770686, now seen corresponding path program 1 times [2020-11-07 02:22:26,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:22:26,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900591162] [2020-11-07 02:22:26,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:22:26,536 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:22:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,055 WARN L194 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-07 02:22:27,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:22:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 02:22:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 02:22:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-11-07 02:22:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-07 02:22:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 02:22:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 02:22:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 02:22:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 02:22:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-11-07 02:22:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 02:22:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-11-07 02:22:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-11-07 02:22:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 02:22:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-11-07 02:22:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 02:22:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-11-07 02:22:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 02:22:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 02:22:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-11-07 02:22:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-11-07 02:22:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-11-07 02:22:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:27,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:22:27,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [900591162] [2020-11-07 02:22:27,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:22:27,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 02:22:27,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459159466] [2020-11-07 02:22:27,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 02:22:27,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:22:27,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 02:22:27,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-07 02:22:27,579 INFO L87 Difference]: Start difference. First operand 869 states and 1095 transitions. Second operand 8 states. [2020-11-07 02:22:27,794 WARN L194 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-11-07 02:22:28,039 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-07 02:22:28,971 WARN L194 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-07 02:22:29,131 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-07 02:22:29,318 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-07 02:22:29,864 WARN L194 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-07 02:22:30,108 WARN L194 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-07 02:22:35,715 WARN L194 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-11-07 02:22:41,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:22:41,409 INFO L93 Difference]: Finished difference Result 2223 states and 2895 transitions. [2020-11-07 02:22:41,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 02:22:41,410 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 395 [2020-11-07 02:22:41,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:22:41,421 INFO L225 Difference]: With dead ends: 2223 [2020-11-07 02:22:41,421 INFO L226 Difference]: Without dead ends: 1480 [2020-11-07 02:22:41,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-11-07 02:22:41,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2020-11-07 02:22:41,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 868. [2020-11-07 02:22:41,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 868 states. [2020-11-07 02:22:41,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1093 transitions. [2020-11-07 02:22:41,824 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1093 transitions. Word has length 395 [2020-11-07 02:22:41,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:22:41,825 INFO L481 AbstractCegarLoop]: Abstraction has 868 states and 1093 transitions. [2020-11-07 02:22:41,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 02:22:41,825 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1093 transitions. [2020-11-07 02:22:41,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-11-07 02:22:41,829 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:22:41,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:22:41,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 02:22:41,830 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:22:41,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:22:41,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1750876254, now seen corresponding path program 1 times [2020-11-07 02:22:41,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:22:41,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738275638] [2020-11-07 02:22:41,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:22:41,834 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:22:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,354 WARN L194 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-07 02:22:42,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:22:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 02:22:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 02:22:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-11-07 02:22:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-07 02:22:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 02:22:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 02:22:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 02:22:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 02:22:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-11-07 02:22:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 02:22:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-11-07 02:22:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-11-07 02:22:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 02:22:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-11-07 02:22:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 02:22:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-11-07 02:22:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 02:22:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 02:22:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-11-07 02:22:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-11-07 02:22:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-11-07 02:22:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:22:42,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738275638] [2020-11-07 02:22:42,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:22:42,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 02:22:42,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667389289] [2020-11-07 02:22:42,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 02:22:42,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:22:42,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 02:22:42,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-07 02:22:42,858 INFO L87 Difference]: Start difference. First operand 868 states and 1093 transitions. Second operand 8 states. [2020-11-07 02:22:43,089 WARN L194 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-11-07 02:22:43,347 WARN L194 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-07 02:22:44,171 WARN L194 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-07 02:22:44,359 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-07 02:22:44,581 WARN L194 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-07 02:22:45,103 WARN L194 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-07 02:22:45,340 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-07 02:22:50,764 WARN L194 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-11-07 02:22:56,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:22:56,541 INFO L93 Difference]: Finished difference Result 2216 states and 2885 transitions. [2020-11-07 02:22:56,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 02:22:56,542 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 395 [2020-11-07 02:22:56,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:22:56,552 INFO L225 Difference]: With dead ends: 2216 [2020-11-07 02:22:56,552 INFO L226 Difference]: Without dead ends: 1479 [2020-11-07 02:22:56,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-11-07 02:22:56,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2020-11-07 02:22:57,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 867. [2020-11-07 02:22:57,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-11-07 02:22:57,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1091 transitions. [2020-11-07 02:22:57,037 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1091 transitions. Word has length 395 [2020-11-07 02:22:57,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:22:57,037 INFO L481 AbstractCegarLoop]: Abstraction has 867 states and 1091 transitions. [2020-11-07 02:22:57,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 02:22:57,038 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1091 transitions. [2020-11-07 02:22:57,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-11-07 02:22:57,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:22:57,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:22:57,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 02:22:57,042 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:22:57,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:22:57,042 INFO L82 PathProgramCache]: Analyzing trace with hash 2104638654, now seen corresponding path program 1 times [2020-11-07 02:22:57,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:22:57,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272410277] [2020-11-07 02:22:57,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:22:57,046 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:22:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,528 WARN L194 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-07 02:22:57,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:22:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 02:22:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 02:22:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-11-07 02:22:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-07 02:22:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 02:22:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 02:22:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 02:22:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 02:22:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-11-07 02:22:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 02:22:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-11-07 02:22:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-11-07 02:22:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 02:22:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-11-07 02:22:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 02:22:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-11-07 02:22:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 02:22:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 02:22:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-11-07 02:22:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-11-07 02:22:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:57,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-11-07 02:22:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:22:58,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:22:58,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272410277] [2020-11-07 02:22:58,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:22:58,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 02:22:58,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020201050] [2020-11-07 02:22:58,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 02:22:58,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:22:58,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 02:22:58,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-07 02:22:58,030 INFO L87 Difference]: Start difference. First operand 867 states and 1091 transitions. Second operand 8 states. [2020-11-07 02:22:58,278 WARN L194 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-11-07 02:22:58,524 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-07 02:22:59,318 WARN L194 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-07 02:22:59,499 WARN L194 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-07 02:22:59,726 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-07 02:23:00,219 WARN L194 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-07 02:23:00,448 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-07 02:23:05,644 WARN L194 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-11-07 02:23:11,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:23:11,220 INFO L93 Difference]: Finished difference Result 2209 states and 2875 transitions. [2020-11-07 02:23:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 02:23:11,221 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 395 [2020-11-07 02:23:11,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:23:11,231 INFO L225 Difference]: With dead ends: 2209 [2020-11-07 02:23:11,231 INFO L226 Difference]: Without dead ends: 1478 [2020-11-07 02:23:11,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-11-07 02:23:11,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2020-11-07 02:23:11,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 866. [2020-11-07 02:23:11,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-11-07 02:23:11,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1089 transitions. [2020-11-07 02:23:11,713 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1089 transitions. Word has length 395 [2020-11-07 02:23:11,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:23:11,714 INFO L481 AbstractCegarLoop]: Abstraction has 866 states and 1089 transitions. [2020-11-07 02:23:11,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 02:23:11,714 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1089 transitions. [2020-11-07 02:23:11,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-11-07 02:23:11,717 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:23:11,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:23:11,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 02:23:11,718 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:23:11,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:23:11,719 INFO L82 PathProgramCache]: Analyzing trace with hash 2058709278, now seen corresponding path program 1 times [2020-11-07 02:23:11,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:23:11,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1225289909] [2020-11-07 02:23:11,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:23:11,722 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:23:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,219 WARN L194 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-07 02:23:12,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:23:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 02:23:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 02:23:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-11-07 02:23:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-07 02:23:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 02:23:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 02:23:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 02:23:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 02:23:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-11-07 02:23:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 02:23:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-11-07 02:23:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-11-07 02:23:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 02:23:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-11-07 02:23:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 02:23:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-11-07 02:23:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 02:23:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 02:23:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-11-07 02:23:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-11-07 02:23:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-11-07 02:23:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:23:12,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1225289909] [2020-11-07 02:23:12,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:23:12,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 02:23:12,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126478131] [2020-11-07 02:23:12,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 02:23:12,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:23:12,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 02:23:12,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-07 02:23:12,813 INFO L87 Difference]: Start difference. First operand 866 states and 1089 transitions. Second operand 8 states. [2020-11-07 02:23:13,055 WARN L194 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-11-07 02:23:13,300 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-07 02:23:14,115 WARN L194 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-07 02:23:14,294 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-07 02:23:14,533 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-07 02:23:15,025 WARN L194 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-07 02:23:15,252 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-07 02:23:20,361 WARN L194 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-11-07 02:23:25,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:23:25,844 INFO L93 Difference]: Finished difference Result 2202 states and 2865 transitions. [2020-11-07 02:23:25,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 02:23:25,849 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 395 [2020-11-07 02:23:25,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:23:25,856 INFO L225 Difference]: With dead ends: 2202 [2020-11-07 02:23:25,856 INFO L226 Difference]: Without dead ends: 1477 [2020-11-07 02:23:25,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-11-07 02:23:25,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2020-11-07 02:23:26,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 865. [2020-11-07 02:23:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 865 states. [2020-11-07 02:23:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1087 transitions. [2020-11-07 02:23:26,342 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1087 transitions. Word has length 395 [2020-11-07 02:23:26,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:23:26,343 INFO L481 AbstractCegarLoop]: Abstraction has 865 states and 1087 transitions. [2020-11-07 02:23:26,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 02:23:26,343 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1087 transitions. [2020-11-07 02:23:26,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-11-07 02:23:26,346 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:23:26,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:23:26,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 02:23:26,347 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:23:26,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:23:26,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1715324286, now seen corresponding path program 1 times [2020-11-07 02:23:26,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:23:26,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027462173] [2020-11-07 02:23:26,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:23:26,351 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:23:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:26,898 WARN L194 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-07 02:23:26,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:23:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:26,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 02:23:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:26,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 02:23:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-11-07 02:23:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-07 02:23:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 02:23:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 02:23:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 02:23:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 02:23:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-11-07 02:23:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 02:23:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-11-07 02:23:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-11-07 02:23:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 02:23:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-11-07 02:23:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 02:23:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-11-07 02:23:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 02:23:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 02:23:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-11-07 02:23:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-11-07 02:23:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-11-07 02:23:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:27,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:23:27,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027462173] [2020-11-07 02:23:27,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:23:27,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 02:23:27,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031105345] [2020-11-07 02:23:27,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 02:23:27,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:23:27,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 02:23:27,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-07 02:23:27,380 INFO L87 Difference]: Start difference. First operand 865 states and 1087 transitions. Second operand 8 states. [2020-11-07 02:23:27,625 WARN L194 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-11-07 02:23:27,874 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-07 02:23:28,550 WARN L194 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-07 02:23:28,730 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-07 02:23:29,027 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-07 02:23:29,207 WARN L194 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-11-07 02:23:31,245 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-07 02:23:36,678 WARN L194 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-11-07 02:23:49,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:23:49,159 INFO L93 Difference]: Finished difference Result 4156 states and 5624 transitions. [2020-11-07 02:23:49,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 02:23:49,160 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 395 [2020-11-07 02:23:49,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:23:49,177 INFO L225 Difference]: With dead ends: 4156 [2020-11-07 02:23:49,178 INFO L226 Difference]: Without dead ends: 3437 [2020-11-07 02:23:49,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2020-11-07 02:23:49,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3437 states. [2020-11-07 02:23:50,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3437 to 1838. [2020-11-07 02:23:50,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-11-07 02:23:50,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2364 transitions. [2020-11-07 02:23:50,446 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2364 transitions. Word has length 395 [2020-11-07 02:23:50,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:23:50,447 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2364 transitions. [2020-11-07 02:23:50,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 02:23:50,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2364 transitions. [2020-11-07 02:23:50,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2020-11-07 02:23:50,452 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:23:50,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:23:50,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 02:23:50,452 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:23:50,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:23:50,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1599358230, now seen corresponding path program 1 times [2020-11-07 02:23:50,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:23:50,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488258700] [2020-11-07 02:23:50,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:23:50,456 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:23:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:50,932 WARN L194 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-07 02:23:50,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:23:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:50,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 02:23:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 02:23:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-11-07 02:23:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-07 02:23:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 02:23:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 02:23:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 02:23:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 02:23:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-11-07 02:23:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 02:23:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-11-07 02:23:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-11-07 02:23:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 02:23:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-11-07 02:23:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 02:23:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-11-07 02:23:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 02:23:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 02:23:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-11-07 02:23:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-11-07 02:23:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-11-07 02:23:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:23:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 02:23:51,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488258700] [2020-11-07 02:23:51,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:23:51,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 02:23:51,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882193967] [2020-11-07 02:23:51,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 02:23:51,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:23:51,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 02:23:51,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-07 02:23:51,371 INFO L87 Difference]: Start difference. First operand 1838 states and 2364 transitions. Second operand 8 states. [2020-11-07 02:23:51,619 WARN L194 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-11-07 02:23:51,856 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-07 02:23:52,653 WARN L194 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-07 02:23:52,825 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-07 02:23:53,369 WARN L194 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-07 02:23:53,594 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-07 02:23:58,360 WARN L194 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-11-07 02:24:06,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:24:06,031 INFO L93 Difference]: Finished difference Result 4799 states and 6373 transitions. [2020-11-07 02:24:06,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 02:24:06,032 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 396 [2020-11-07 02:24:06,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:24:06,049 INFO L225 Difference]: With dead ends: 4799 [2020-11-07 02:24:06,049 INFO L226 Difference]: Without dead ends: 3105 [2020-11-07 02:24:06,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-11-07 02:24:06,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2020-11-07 02:24:07,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 1800. [2020-11-07 02:24:07,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1800 states. [2020-11-07 02:24:07,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2315 transitions. [2020-11-07 02:24:07,313 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2315 transitions. Word has length 396 [2020-11-07 02:24:07,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:24:07,313 INFO L481 AbstractCegarLoop]: Abstraction has 1800 states and 2315 transitions. [2020-11-07 02:24:07,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 02:24:07,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2315 transitions. [2020-11-07 02:24:07,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2020-11-07 02:24:07,317 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:24:07,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:24:07,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 02:24:07,318 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:24:07,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:24:07,318 INFO L82 PathProgramCache]: Analyzing trace with hash 948197824, now seen corresponding path program 1 times [2020-11-07 02:24:07,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:24:07,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493930568] [2020-11-07 02:24:07,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:24:07,322 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:24:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 02:24:07,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 02:24:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 02:24:07,423 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 02:24:08,206 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 02:24:08,206 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 02:24:08,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 02:24:08,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:24:08 BoogieIcfgContainer [2020-11-07 02:24:08,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 02:24:08,258 INFO L168 Benchmark]: Toolchain (without parser) took 153154.14 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 999.3 MB). Free memory was 126.7 MB in the beginning and 944.0 MB in the end (delta: -817.3 MB). Peak memory consumption was 183.9 MB. Max. memory is 8.0 GB. [2020-11-07 02:24:08,258 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory was 101.2 MB in the beginning and 101.1 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 02:24:08,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.21 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 132.2 MB in the end (delta: -6.1 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. [2020-11-07 02:24:08,260 INFO L168 Benchmark]: Boogie Preprocessor took 162.94 ms. Allocated memory is still 151.0 MB. Free memory was 132.2 MB in the beginning and 127.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 02:24:08,260 INFO L168 Benchmark]: RCFGBuilder took 1538.85 ms. Allocated memory is still 151.0 MB. Free memory was 127.6 MB in the beginning and 100.2 MB in the end (delta: 27.4 MB). Peak memory consumption was 60.9 MB. Max. memory is 8.0 GB. [2020-11-07 02:24:08,261 INFO L168 Benchmark]: TraceAbstraction took 150626.85 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 999.3 MB). Free memory was 99.7 MB in the beginning and 944.0 MB in the end (delta: -844.3 MB). Peak memory consumption was 155.5 MB. Max. memory is 8.0 GB. [2020-11-07 02:24:08,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory was 101.2 MB in the beginning and 101.1 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 809.21 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 132.2 MB in the end (delta: -6.1 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 162.94 ms. Allocated memory is still 151.0 MB. Free memory was 132.2 MB in the beginning and 127.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1538.85 ms. Allocated memory is still 151.0 MB. Free memory was 127.6 MB in the beginning and 100.2 MB in the end (delta: 27.4 MB). Peak memory consumption was 60.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 150626.85 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 999.3 MB). Free memory was 99.7 MB in the beginning and 944.0 MB in the end (delta: -844.3 MB). Peak memory consumption was 155.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int m_pc = 0; [L18] int t1_pc = 0; [L19] int t2_pc = 0; [L20] int t3_pc = 0; [L21] int t4_pc = 0; [L22] int t5_pc = 0; [L23] int t6_pc = 0; [L24] int t7_pc = 0; [L25] int t8_pc = 0; [L26] int t9_pc = 0; [L27] int t10_pc = 0; [L28] int t11_pc = 0; [L29] int t12_pc = 0; [L30] int t13_pc = 0; [L31] int m_st ; [L32] int t1_st ; [L33] int t2_st ; [L34] int t3_st ; [L35] int t4_st ; [L36] int t5_st ; [L37] int t6_st ; [L38] int t7_st ; [L39] int t8_st ; [L40] int t9_st ; [L41] int t10_st ; [L42] int t11_st ; [L43] int t12_st ; [L44] int t13_st ; [L45] int m_i ; [L46] int t1_i ; [L47] int t2_i ; [L48] int t3_i ; [L49] int t4_i ; [L50] int t5_i ; [L51] int t6_i ; [L52] int t7_i ; [L53] int t8_i ; [L54] int t9_i ; [L55] int t10_i ; [L56] int t11_i ; [L57] int t12_i ; [L58] int t13_i ; [L59] int M_E = 2; [L60] int T1_E = 2; [L61] int T2_E = 2; [L62] int T3_E = 2; [L63] int T4_E = 2; [L64] int T5_E = 2; [L65] int T6_E = 2; [L66] int T7_E = 2; [L67] int T8_E = 2; [L68] int T9_E = 2; [L69] int T10_E = 2; [L70] int T11_E = 2; [L71] int T12_E = 2; [L72] int T13_E = 2; [L73] int E_1 = 2; [L74] int E_2 = 2; [L75] int E_3 = 2; [L76] int E_4 = 2; [L77] int E_5 = 2; [L78] int E_6 = 2; [L79] int E_7 = 2; [L80] int E_8 = 2; [L81] int E_9 = 2; [L82] int E_10 = 2; [L83] int E_11 = 2; [L84] int E_12 = 2; [L85] int E_13 = 2; [L1929] int __retres1 ; [L1933] CALL init_model() [L1832] m_i = 1 [L1833] t1_i = 1 [L1834] t2_i = 1 [L1835] t3_i = 1 [L1836] t4_i = 1 [L1837] t5_i = 1 [L1838] t6_i = 1 [L1839] t7_i = 1 [L1840] t8_i = 1 [L1841] t9_i = 1 [L1842] t10_i = 1 [L1843] t11_i = 1 [L1844] t12_i = 1 [L1845] t13_i = 1 [L1933] RET init_model() [L1934] CALL start_simulation() [L1870] int kernel_st ; [L1871] int tmp ; [L1872] int tmp___0 ; [L1876] kernel_st = 0 [L1877] FCALL update_channels() [L1878] CALL init_threads() [L873] COND TRUE m_i == 1 [L874] m_st = 0 [L878] COND TRUE t1_i == 1 [L879] t1_st = 0 [L883] COND TRUE t2_i == 1 [L884] t2_st = 0 [L888] COND TRUE t3_i == 1 [L889] t3_st = 0 [L893] COND TRUE t4_i == 1 [L894] t4_st = 0 [L898] COND TRUE t5_i == 1 [L899] t5_st = 0 [L903] COND TRUE t6_i == 1 [L904] t6_st = 0 [L908] COND TRUE t7_i == 1 [L909] t7_st = 0 [L913] COND TRUE t8_i == 1 [L914] t8_st = 0 [L918] COND TRUE t9_i == 1 [L919] t9_st = 0 [L923] COND TRUE t10_i == 1 [L924] t10_st = 0 [L928] COND TRUE t11_i == 1 [L929] t11_st = 0 [L933] COND TRUE t12_i == 1 [L934] t12_st = 0 [L938] COND TRUE t13_i == 1 [L939] t13_st = 0 [L1878] RET init_threads() [L1879] CALL fire_delta_events() [L1250] COND FALSE !(M_E == 0) [L1255] COND FALSE !(T1_E == 0) [L1260] COND FALSE !(T2_E == 0) [L1265] COND FALSE !(T3_E == 0) [L1270] COND FALSE !(T4_E == 0) [L1275] COND FALSE !(T5_E == 0) [L1280] COND FALSE !(T6_E == 0) [L1285] COND FALSE !(T7_E == 0) [L1290] COND FALSE !(T8_E == 0) [L1295] COND FALSE !(T9_E == 0) [L1300] COND FALSE !(T10_E == 0) [L1305] COND FALSE !(T11_E == 0) [L1310] COND FALSE !(T12_E == 0) [L1315] COND FALSE !(T13_E == 0) [L1320] COND FALSE !(E_1 == 0) [L1325] COND FALSE !(E_2 == 0) [L1330] COND FALSE !(E_3 == 0) [L1335] COND FALSE !(E_4 == 0) [L1340] COND FALSE !(E_5 == 0) [L1345] COND FALSE !(E_6 == 0) [L1350] COND FALSE !(E_7 == 0) [L1355] COND FALSE !(E_8 == 0) [L1360] COND FALSE !(E_9 == 0) [L1365] COND FALSE !(E_10 == 0) [L1370] COND FALSE !(E_11 == 0) [L1375] COND FALSE !(E_12 == 0) [L1380] COND FALSE !(E_13 == 0) [L1879] RET fire_delta_events() [L1880] CALL activate_threads() [L1533] int tmp ; [L1534] int tmp___0 ; [L1535] int tmp___1 ; [L1536] int tmp___2 ; [L1537] int tmp___3 ; [L1538] int tmp___4 ; [L1539] int tmp___5 ; [L1540] int tmp___6 ; [L1541] int tmp___7 ; [L1542] int tmp___8 ; [L1543] int tmp___9 ; [L1544] int tmp___10 ; [L1545] int tmp___11 ; [L1546] int tmp___12 ; [L1550] CALL, EXPR is_master_triggered() [L596] int __retres1 ; [L599] COND FALSE !(m_pc == 1) [L609] __retres1 = 0 [L611] return (__retres1); [L1550] RET, EXPR is_master_triggered() [L1550] tmp = is_master_triggered() [L1552] COND FALSE !(\read(tmp)) [L1558] CALL, EXPR is_transmit1_triggered() [L615] int __retres1 ; [L618] COND FALSE !(t1_pc == 1) [L628] __retres1 = 0 [L630] return (__retres1); [L1558] RET, EXPR is_transmit1_triggered() [L1558] tmp___0 = is_transmit1_triggered() [L1560] COND FALSE !(\read(tmp___0)) [L1566] CALL, EXPR is_transmit2_triggered() [L634] int __retres1 ; [L637] COND FALSE !(t2_pc == 1) [L647] __retres1 = 0 [L649] return (__retres1); [L1566] RET, EXPR is_transmit2_triggered() [L1566] tmp___1 = is_transmit2_triggered() [L1568] COND FALSE !(\read(tmp___1)) [L1574] CALL, EXPR is_transmit3_triggered() [L653] int __retres1 ; [L656] COND FALSE !(t3_pc == 1) [L666] __retres1 = 0 [L668] return (__retres1); [L1574] RET, EXPR is_transmit3_triggered() [L1574] tmp___2 = is_transmit3_triggered() [L1576] COND FALSE !(\read(tmp___2)) [L1582] CALL, EXPR is_transmit4_triggered() [L672] int __retres1 ; [L675] COND FALSE !(t4_pc == 1) [L685] __retres1 = 0 [L687] return (__retres1); [L1582] RET, EXPR is_transmit4_triggered() [L1582] tmp___3 = is_transmit4_triggered() [L1584] COND FALSE !(\read(tmp___3)) [L1590] CALL, EXPR is_transmit5_triggered() [L691] int __retres1 ; [L694] COND FALSE !(t5_pc == 1) [L704] __retres1 = 0 [L706] return (__retres1); [L1590] RET, EXPR is_transmit5_triggered() [L1590] tmp___4 = is_transmit5_triggered() [L1592] COND FALSE !(\read(tmp___4)) [L1598] CALL, EXPR is_transmit6_triggered() [L710] int __retres1 ; [L713] COND FALSE !(t6_pc == 1) [L723] __retres1 = 0 [L725] return (__retres1); [L1598] RET, EXPR is_transmit6_triggered() [L1598] tmp___5 = is_transmit6_triggered() [L1600] COND FALSE !(\read(tmp___5)) [L1606] CALL, EXPR is_transmit7_triggered() [L729] int __retres1 ; [L732] COND FALSE !(t7_pc == 1) [L742] __retres1 = 0 [L744] return (__retres1); [L1606] RET, EXPR is_transmit7_triggered() [L1606] tmp___6 = is_transmit7_triggered() [L1608] COND FALSE !(\read(tmp___6)) [L1614] CALL, EXPR is_transmit8_triggered() [L748] int __retres1 ; [L751] COND FALSE !(t8_pc == 1) [L761] __retres1 = 0 [L763] return (__retres1); [L1614] RET, EXPR is_transmit8_triggered() [L1614] tmp___7 = is_transmit8_triggered() [L1616] COND FALSE !(\read(tmp___7)) [L1622] CALL, EXPR is_transmit9_triggered() [L767] int __retres1 ; [L770] COND FALSE !(t9_pc == 1) [L780] __retres1 = 0 [L782] return (__retres1); [L1622] RET, EXPR is_transmit9_triggered() [L1622] tmp___8 = is_transmit9_triggered() [L1624] COND FALSE !(\read(tmp___8)) [L1630] CALL, EXPR is_transmit10_triggered() [L786] int __retres1 ; [L789] COND FALSE !(t10_pc == 1) [L799] __retres1 = 0 [L801] return (__retres1); [L1630] RET, EXPR is_transmit10_triggered() [L1630] tmp___9 = is_transmit10_triggered() [L1632] COND FALSE !(\read(tmp___9)) [L1638] CALL, EXPR is_transmit11_triggered() [L805] int __retres1 ; [L808] COND FALSE !(t11_pc == 1) [L818] __retres1 = 0 [L820] return (__retres1); [L1638] RET, EXPR is_transmit11_triggered() [L1638] tmp___10 = is_transmit11_triggered() [L1640] COND FALSE !(\read(tmp___10)) [L1646] CALL, EXPR is_transmit12_triggered() [L824] int __retres1 ; [L827] COND FALSE !(t12_pc == 1) [L837] __retres1 = 0 [L839] return (__retres1); [L1646] RET, EXPR is_transmit12_triggered() [L1646] tmp___11 = is_transmit12_triggered() [L1648] COND FALSE !(\read(tmp___11)) [L1654] CALL, EXPR is_transmit13_triggered() [L843] int __retres1 ; [L846] COND FALSE !(t13_pc == 1) [L856] __retres1 = 0 [L858] return (__retres1); [L1654] RET, EXPR is_transmit13_triggered() [L1654] tmp___12 = is_transmit13_triggered() [L1656] COND FALSE !(\read(tmp___12)) [L1880] RET activate_threads() [L1881] CALL reset_delta_events() [L1393] COND FALSE !(M_E == 1) [L1398] COND FALSE !(T1_E == 1) [L1403] COND FALSE !(T2_E == 1) [L1408] COND FALSE !(T3_E == 1) [L1413] COND FALSE !(T4_E == 1) [L1418] COND FALSE !(T5_E == 1) [L1423] COND FALSE !(T6_E == 1) [L1428] COND FALSE !(T7_E == 1) [L1433] COND FALSE !(T8_E == 1) [L1438] COND FALSE !(T9_E == 1) [L1443] COND FALSE !(T10_E == 1) [L1448] COND FALSE !(T11_E == 1) [L1453] COND FALSE !(T12_E == 1) [L1458] COND FALSE !(T13_E == 1) [L1463] COND FALSE !(E_1 == 1) [L1468] COND FALSE !(E_2 == 1) [L1473] COND FALSE !(E_3 == 1) [L1478] COND FALSE !(E_4 == 1) [L1483] COND FALSE !(E_5 == 1) [L1488] COND FALSE !(E_6 == 1) [L1493] COND FALSE !(E_7 == 1) [L1498] COND FALSE !(E_8 == 1) [L1503] COND FALSE !(E_9 == 1) [L1508] COND FALSE !(E_10 == 1) [L1513] COND FALSE !(E_11 == 1) [L1518] COND FALSE !(E_12 == 1) [L1523] COND FALSE !(E_13 == 1) [L1881] RET reset_delta_events() [L1884] COND TRUE 1 [L1887] kernel_st = 1 [L1888] CALL eval() [L1029] int tmp ; [L1033] COND TRUE 1 [L1036] CALL, EXPR exists_runnable_thread() [L948] int __retres1 ; [L951] COND TRUE m_st == 0 [L952] __retres1 = 1 [L1024] return (__retres1); [L1036] RET, EXPR exists_runnable_thread() [L1036] tmp = exists_runnable_thread() [L1038] COND TRUE \read(tmp) [L1043] COND TRUE m_st == 0 [L1044] int tmp_ndt_1; [L1045] tmp_ndt_1 = __VERIFIER_nondet_int() [L1046] COND FALSE !(\read(tmp_ndt_1)) [L1057] COND TRUE t1_st == 0 [L1058] int tmp_ndt_2; [L1059] tmp_ndt_2 = __VERIFIER_nondet_int() [L1060] COND FALSE !(\read(tmp_ndt_2)) [L1066] CALL error() [L13] CALL reach_error() [L3] __assert_fail("0", "transmitter.15.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 885 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 150.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 132.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6873 SDtfs, 41828 SDslu, 1765 SDs, 0 SdLazy, 31611 SolverSat, 6591 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 580 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 26.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1838occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 7188 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...