/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/token_ring.01.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 21:38:10,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:38:10,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:38:10,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 21:38:10,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 21:38:10,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 21:38:10,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 21:38:10,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 21:38:10,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 21:38:10,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 21:38:10,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 21:38:10,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 21:38:10,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:38:10,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:38:10,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:38:10,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:38:10,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:38:10,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:38:10,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:38:10,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:38:10,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:38:10,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:38:10,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:38:10,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:38:10,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 21:38:10,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 21:38:10,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 21:38:10,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 21:38:10,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 21:38:10,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 21:38:10,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 21:38:10,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 21:38:10,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 21:38:10,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 21:38:10,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 21:38:10,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 21:38:10,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 21:38:10,946 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:38:10,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:38:10,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:38:10,949 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:38:10,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:38:10,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:38:10,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:38:10,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:38:10,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:38:10,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:38:10,950 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:38:10,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:38:10,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:38:10,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:38:10,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:38:10,951 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:38:10,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:38:10,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:38:10,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:38:10,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:38:10,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:38:10,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:38:10,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:38:11,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:38:11,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:38:11,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:38:11,386 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:38:11,387 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:38:11,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2021-02-21 21:38:11,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/236d6f382/f03cbcffe1d24636abd7670d1371e522/FLAGed679092d [2021-02-21 21:38:12,196 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:38:12,197 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2021-02-21 21:38:12,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/236d6f382/f03cbcffe1d24636abd7670d1371e522/FLAGed679092d [2021-02-21 21:38:12,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/236d6f382/f03cbcffe1d24636abd7670d1371e522 [2021-02-21 21:38:12,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:38:12,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:38:12,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:38:12,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:38:12,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:38:12,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:38:12" (1/1) ... [2021-02-21 21:38:12,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35077097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:38:12, skipping insertion in model container [2021-02-21 21:38:12,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:38:12" (1/1) ... [2021-02-21 21:38:12,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:38:12,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:38:12,898 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.01.cil-2.c[366,379] [2021-02-21 21:38:12,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:38:12,980 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:38:12,994 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.01.cil-2.c[366,379] [2021-02-21 21:38:13,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:38:13,054 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:38:13,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:38:13 WrapperNode [2021-02-21 21:38:13,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:38:13,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:38:13,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:38:13,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:38:13,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:38:13" (1/1) ... [2021-02-21 21:38:13,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:38:13" (1/1) ... [2021-02-21 21:38:13,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:38:13" (1/1) ... [2021-02-21 21:38:13,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:38:13" (1/1) ... [2021-02-21 21:38:13,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:38:13" (1/1) ... [2021-02-21 21:38:13,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:38:13" (1/1) ... [2021-02-21 21:38:13,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:38:13" (1/1) ... [2021-02-21 21:38:13,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:38:13,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:38:13,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:38:13,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:38:13,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:38:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:38:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:38:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:38:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:38:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-21 21:38:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2021-02-21 21:38:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2021-02-21 21:38:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2021-02-21 21:38:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2021-02-21 21:38:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-21 21:38:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-21 21:38:13,258 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-21 21:38:13,258 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-21 21:38:13,258 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-21 21:38:13,258 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-21 21:38:13,259 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-21 21:38:13,259 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-02-21 21:38:13,259 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-21 21:38:13,259 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-21 21:38:13,260 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-21 21:38:13,260 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-21 21:38:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-21 21:38:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:38:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:38:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:38:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:38:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:38:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-21 21:38:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2021-02-21 21:38:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2021-02-21 21:38:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-02-21 21:38:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 21:38:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure master [2021-02-21 21:38:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2021-02-21 21:38:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-21 21:38:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-21 21:38:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-21 21:38:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-21 21:38:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-21 21:38:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-21 21:38:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-21 21:38:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-21 21:38:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-21 21:38:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-21 21:38:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-21 21:38:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-21 21:38:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:38:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:38:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:38:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:38:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:38:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:38:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:38:13,900 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:38:13,900 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-02-21 21:38:13,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:38:13 BoogieIcfgContainer [2021-02-21 21:38:13,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:38:13,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:38:13,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:38:13,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:38:13,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:38:12" (1/3) ... [2021-02-21 21:38:13,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28aa974f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:38:13, skipping insertion in model container [2021-02-21 21:38:13,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:38:13" (2/3) ... [2021-02-21 21:38:13,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28aa974f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:38:13, skipping insertion in model container [2021-02-21 21:38:13,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:38:13" (3/3) ... [2021-02-21 21:38:13,913 INFO L111 eAbstractionObserver]: Analyzing ICFG token_ring.01.cil-2.c [2021-02-21 21:38:13,921 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:38:13,928 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:38:13,950 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:38:13,977 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:38:13,978 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:38:13,978 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:38:13,978 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:38:13,978 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:38:13,979 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:38:13,979 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:38:13,979 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:38:14,002 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2021-02-21 21:38:14,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-02-21 21:38:14,021 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:38:14,023 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] [2021-02-21 21:38:14,023 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:38:14,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:38:14,031 INFO L82 PathProgramCache]: Analyzing trace with hash -925240097, now seen corresponding path program 1 times [2021-02-21 21:38:14,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:38:14,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111467599] [2021-02-21 21:38:14,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:38:14,127 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:38:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:14,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:14,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:14,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:14,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:14,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:14,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:14,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:14,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:14,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:14,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:38:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:14,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:14,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-21 21:38:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:14,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:14,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 21:38:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:14,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:14,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-21 21:38:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:14,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:14,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-21 21:38:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:14,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:14,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:14,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:14,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:14,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:14,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-21 21:38:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:14,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:14,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:38:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:14,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:14,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:38:14,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111467599] [2021-02-21 21:38:14,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:38:14,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 21:38:14,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134910440] [2021-02-21 21:38:14,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 21:38:14,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:38:14,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 21:38:14,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-21 21:38:14,863 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 7 states. [2021-02-21 21:38:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:38:17,250 INFO L93 Difference]: Finished difference Result 803 states and 1076 transitions. [2021-02-21 21:38:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-21 21:38:17,252 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2021-02-21 21:38:17,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:38:17,291 INFO L225 Difference]: With dead ends: 803 [2021-02-21 21:38:17,291 INFO L226 Difference]: Without dead ends: 592 [2021-02-21 21:38:17,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-02-21 21:38:17,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-02-21 21:38:17,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 411. [2021-02-21 21:38:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2021-02-21 21:38:17,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 500 transitions. [2021-02-21 21:38:17,501 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 500 transitions. Word has length 118 [2021-02-21 21:38:17,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:38:17,502 INFO L480 AbstractCegarLoop]: Abstraction has 411 states and 500 transitions. [2021-02-21 21:38:17,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 21:38:17,503 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 500 transitions. [2021-02-21 21:38:17,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-02-21 21:38:17,509 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:38:17,509 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:38:17,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:38:17,510 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:38:17,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:38:17,511 INFO L82 PathProgramCache]: Analyzing trace with hash -283101501, now seen corresponding path program 1 times [2021-02-21 21:38:17,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:38:17,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844485428] [2021-02-21 21:38:17,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:38:17,517 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:38:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:17,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:17,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:17,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:17,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:17,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:17,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:17,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:38:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:17,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-21 21:38:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:17,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 21:38:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:17,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:17,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-21 21:38:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:17,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-21 21:38:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:17,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:17,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:17,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-21 21:38:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:17,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:38:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:17,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 21:38:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:17,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:17,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:18,015 WARN L141 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-02-21 21:38:18,016 WARN L147 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size 14 [2021-02-21 21:38:18,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 21:38:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:18,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:18,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:38:18,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:18,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:18,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:18,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:18,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:18,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:18,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:18,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:18,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:18,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 21:38:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:18,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:18,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:18,178 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-02-21 21:38:18,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844485428] [2021-02-21 21:38:18,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:38:18,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 21:38:18,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416932662] [2021-02-21 21:38:18,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 21:38:18,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:38:18,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 21:38:18,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-02-21 21:38:18,182 INFO L87 Difference]: Start difference. First operand 411 states and 500 transitions. Second operand 10 states. [2021-02-21 21:38:21,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:38:21,137 INFO L93 Difference]: Finished difference Result 1570 states and 2153 transitions. [2021-02-21 21:38:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-21 21:38:21,137 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 184 [2021-02-21 21:38:21,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:38:21,152 INFO L225 Difference]: With dead ends: 1570 [2021-02-21 21:38:21,153 INFO L226 Difference]: Without dead ends: 1207 [2021-02-21 21:38:21,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2021-02-21 21:38:21,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2021-02-21 21:38:21,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 785. [2021-02-21 21:38:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2021-02-21 21:38:21,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 993 transitions. [2021-02-21 21:38:21,389 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 993 transitions. Word has length 184 [2021-02-21 21:38:21,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:38:21,390 INFO L480 AbstractCegarLoop]: Abstraction has 785 states and 993 transitions. [2021-02-21 21:38:21,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 21:38:21,391 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 993 transitions. [2021-02-21 21:38:21,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-02-21 21:38:21,396 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:38:21,396 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:38:21,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:38:21,397 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:38:21,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:38:21,397 INFO L82 PathProgramCache]: Analyzing trace with hash -453914013, now seen corresponding path program 1 times [2021-02-21 21:38:21,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:38:21,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524459116] [2021-02-21 21:38:21,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:38:21,402 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:38:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:21,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:38:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:38:21,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-21 21:38:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 21:38:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:38:21,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-21 21:38:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-21 21:38:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-21 21:38:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:38:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 21:38:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 21:38:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 21:38:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:21,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:21,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-02-21 21:38:21,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524459116] [2021-02-21 21:38:21,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:38:21,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 21:38:21,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271755595] [2021-02-21 21:38:21,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 21:38:21,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:38:21,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 21:38:21,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-21 21:38:21,669 INFO L87 Difference]: Start difference. First operand 785 states and 993 transitions. Second operand 9 states. [2021-02-21 21:38:23,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:38:23,525 INFO L93 Difference]: Finished difference Result 1832 states and 2383 transitions. [2021-02-21 21:38:23,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-21 21:38:23,525 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2021-02-21 21:38:23,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:38:23,535 INFO L225 Difference]: With dead ends: 1832 [2021-02-21 21:38:23,535 INFO L226 Difference]: Without dead ends: 1093 [2021-02-21 21:38:23,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2021-02-21 21:38:23,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2021-02-21 21:38:23,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 779. [2021-02-21 21:38:23,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2021-02-21 21:38:23,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 982 transitions. [2021-02-21 21:38:23,714 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 982 transitions. Word has length 184 [2021-02-21 21:38:23,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:38:23,714 INFO L480 AbstractCegarLoop]: Abstraction has 779 states and 982 transitions. [2021-02-21 21:38:23,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 21:38:23,715 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 982 transitions. [2021-02-21 21:38:23,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-02-21 21:38:23,718 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:38:23,719 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:38:23,719 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 21:38:23,719 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:38:23,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:38:23,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1497123805, now seen corresponding path program 1 times [2021-02-21 21:38:23,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:38:23,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944900944] [2021-02-21 21:38:23,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:38:23,724 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:38:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:23,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:23,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:23,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:38:23,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:38:23,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:38:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-21 21:38:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 21:38:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-21 21:38:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-21 21:38:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-21 21:38:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:38:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 21:38:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:23,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 21:38:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:23,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:23,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:23,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:24,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:24,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:24,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:24,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:24,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:24,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-21 21:38:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:24,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:24,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:24,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:24,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-02-21 21:38:24,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944900944] [2021-02-21 21:38:24,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:38:24,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-21 21:38:24,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986880315] [2021-02-21 21:38:24,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-21 21:38:24,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:38:24,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-21 21:38:24,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-02-21 21:38:24,067 INFO L87 Difference]: Start difference. First operand 779 states and 982 transitions. Second operand 11 states. [2021-02-21 21:38:30,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:38:30,185 INFO L93 Difference]: Finished difference Result 4526 states and 6148 transitions. [2021-02-21 21:38:30,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-21 21:38:30,185 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 189 [2021-02-21 21:38:30,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:38:30,214 INFO L225 Difference]: With dead ends: 4526 [2021-02-21 21:38:30,215 INFO L226 Difference]: Without dead ends: 3792 [2021-02-21 21:38:30,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=566, Invalid=2296, Unknown=0, NotChecked=0, Total=2862 [2021-02-21 21:38:30,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2021-02-21 21:38:30,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3004. [2021-02-21 21:38:30,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3004 states. [2021-02-21 21:38:30,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 3803 transitions. [2021-02-21 21:38:30,886 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 3803 transitions. Word has length 189 [2021-02-21 21:38:30,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:38:30,887 INFO L480 AbstractCegarLoop]: Abstraction has 3004 states and 3803 transitions. [2021-02-21 21:38:30,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-21 21:38:30,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 3803 transitions. [2021-02-21 21:38:30,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-02-21 21:38:30,896 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:38:30,897 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:38:30,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 21:38:30,898 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:38:30,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:38:30,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1911718646, now seen corresponding path program 1 times [2021-02-21 21:38:30,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:38:30,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078218864] [2021-02-21 21:38:30,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:38:30,902 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:38:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:30,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:30,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:30,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:30,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:30,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:30,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:30,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:38:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-21 21:38:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 21:38:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-21 21:38:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-21 21:38:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-21 21:38:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:38:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 21:38:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 21:38:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:38:31,169 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-21 21:38:31,170 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-21 21:38:31,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:38:31,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:38:31,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 21:38:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-21 21:38:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-21 21:38:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 21:38:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-02-21 21:38:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:31,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:31,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-21 21:38:31,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078218864] [2021-02-21 21:38:31,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:38:31,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-21 21:38:31,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983336684] [2021-02-21 21:38:31,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-21 21:38:31,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:38:31,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-21 21:38:31,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-02-21 21:38:31,341 INFO L87 Difference]: Start difference. First operand 3004 states and 3803 transitions. Second operand 12 states. [2021-02-21 21:38:34,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:38:34,515 INFO L93 Difference]: Finished difference Result 6537 states and 8543 transitions. [2021-02-21 21:38:34,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-21 21:38:34,516 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 233 [2021-02-21 21:38:34,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:38:34,545 INFO L225 Difference]: With dead ends: 6537 [2021-02-21 21:38:34,545 INFO L226 Difference]: Without dead ends: 3268 [2021-02-21 21:38:34,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=224, Invalid=532, Unknown=0, NotChecked=0, Total=756 [2021-02-21 21:38:34,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3268 states. [2021-02-21 21:38:35,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3268 to 2458. [2021-02-21 21:38:35,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2458 states. [2021-02-21 21:38:35,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3048 transitions. [2021-02-21 21:38:35,133 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3048 transitions. Word has length 233 [2021-02-21 21:38:35,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:38:35,134 INFO L480 AbstractCegarLoop]: Abstraction has 2458 states and 3048 transitions. [2021-02-21 21:38:35,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-21 21:38:35,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3048 transitions. [2021-02-21 21:38:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-02-21 21:38:35,140 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:38:35,140 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:38:35,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 21:38:35,141 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:38:35,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:38:35,141 INFO L82 PathProgramCache]: Analyzing trace with hash 759361234, now seen corresponding path program 1 times [2021-02-21 21:38:35,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:38:35,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454627612] [2021-02-21 21:38:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:38:35,145 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:38:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:35,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:35,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:35,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:35,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:35,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:38:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-21 21:38:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 21:38:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-21 21:38:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-21 21:38:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-21 21:38:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:38:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 21:38:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 21:38:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-21 21:38:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:35,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-21 21:38:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:38:35,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:38:35,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 21:38:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:38:35,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-02-21 21:38:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:35,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:35,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:35,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:38:35,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454627612] [2021-02-21 21:38:35,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:38:35,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-21 21:38:35,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522121599] [2021-02-21 21:38:35,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-21 21:38:35,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:38:35,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-21 21:38:35,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-02-21 21:38:35,520 INFO L87 Difference]: Start difference. First operand 2458 states and 3048 transitions. Second operand 11 states. [2021-02-21 21:38:39,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:38:39,446 INFO L93 Difference]: Finished difference Result 7017 states and 9122 transitions. [2021-02-21 21:38:39,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-21 21:38:39,446 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 233 [2021-02-21 21:38:39,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:38:39,482 INFO L225 Difference]: With dead ends: 7017 [2021-02-21 21:38:39,482 INFO L226 Difference]: Without dead ends: 4604 [2021-02-21 21:38:39,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=222, Invalid=770, Unknown=0, NotChecked=0, Total=992 [2021-02-21 21:38:39,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2021-02-21 21:38:40,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 3690. [2021-02-21 21:38:40,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3690 states. [2021-02-21 21:38:40,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3690 states to 3690 states and 4490 transitions. [2021-02-21 21:38:40,245 INFO L78 Accepts]: Start accepts. Automaton has 3690 states and 4490 transitions. Word has length 233 [2021-02-21 21:38:40,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:38:40,246 INFO L480 AbstractCegarLoop]: Abstraction has 3690 states and 4490 transitions. [2021-02-21 21:38:40,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-21 21:38:40,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3690 states and 4490 transitions. [2021-02-21 21:38:40,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-02-21 21:38:40,255 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:38:40,255 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:38:40,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 21:38:40,256 INFO L428 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:38:40,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:38:40,257 INFO L82 PathProgramCache]: Analyzing trace with hash -209033575, now seen corresponding path program 1 times [2021-02-21 21:38:40,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:38:40,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586589735] [2021-02-21 21:38:40,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:38:40,260 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:38:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:40,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:40,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:40,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:38:40,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:38:40,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:38:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-21 21:38:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 21:38:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-21 21:38:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-21 21:38:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-21 21:38:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:38:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 21:38:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 21:38:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-21 21:38:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:40,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-02-21 21:38:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:40,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-02-21 21:38:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-21 21:38:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 21:38:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-02-21 21:38:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:40,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:40,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:38:40,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586589735] [2021-02-21 21:38:40,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:38:40,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-21 21:38:40,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636051776] [2021-02-21 21:38:40,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-21 21:38:40,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:38:40,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-21 21:38:40,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-02-21 21:38:40,601 INFO L87 Difference]: Start difference. First operand 3690 states and 4490 transitions. Second operand 12 states. [2021-02-21 21:38:47,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:38:47,341 INFO L93 Difference]: Finished difference Result 7123 states and 8791 transitions. [2021-02-21 21:38:47,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-02-21 21:38:47,341 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 262 [2021-02-21 21:38:47,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:38:47,373 INFO L225 Difference]: With dead ends: 7123 [2021-02-21 21:38:47,373 INFO L226 Difference]: Without dead ends: 4639 [2021-02-21 21:38:47,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=689, Invalid=3217, Unknown=0, NotChecked=0, Total=3906 [2021-02-21 21:38:47,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2021-02-21 21:38:48,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 3732. [2021-02-21 21:38:48,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3732 states. [2021-02-21 21:38:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 4438 transitions. [2021-02-21 21:38:48,233 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 4438 transitions. Word has length 262 [2021-02-21 21:38:48,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:38:48,234 INFO L480 AbstractCegarLoop]: Abstraction has 3732 states and 4438 transitions. [2021-02-21 21:38:48,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-21 21:38:48,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 4438 transitions. [2021-02-21 21:38:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-02-21 21:38:48,243 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:38:48,243 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:38:48,244 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 21:38:48,244 INFO L428 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:38:48,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:38:48,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1959177767, now seen corresponding path program 1 times [2021-02-21 21:38:48,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:38:48,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635834542] [2021-02-21 21:38:48,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:38:48,248 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:38:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:48,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:48,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:48,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:48,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:38:48,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:38:48,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:38:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-21 21:38:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 21:38:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-21 21:38:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:48,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-21 21:38:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-21 21:38:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:38:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-21 21:38:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-21 21:38:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-21 21:38:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:48,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 21:38:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-21 21:38:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:38:48,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-21 21:38:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:48,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:48,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 21:38:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:48,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:48,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-21 21:38:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:48,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:48,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:38:48,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635834542] [2021-02-21 21:38:48,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:38:48,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-02-21 21:38:48,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431607824] [2021-02-21 21:38:48,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-21 21:38:48,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:38:48,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-21 21:38:48,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-02-21 21:38:48,640 INFO L87 Difference]: Start difference. First operand 3732 states and 4438 transitions. Second operand 17 states. [2021-02-21 21:38:57,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:38:57,576 INFO L93 Difference]: Finished difference Result 8547 states and 10741 transitions. [2021-02-21 21:38:57,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-02-21 21:38:57,576 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 268 [2021-02-21 21:38:57,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:38:57,607 INFO L225 Difference]: With dead ends: 8547 [2021-02-21 21:38:57,608 INFO L226 Difference]: Without dead ends: 4859 [2021-02-21 21:38:57,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3889 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1782, Invalid=8724, Unknown=0, NotChecked=0, Total=10506 [2021-02-21 21:38:57,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4859 states. [2021-02-21 21:38:58,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4859 to 3740. [2021-02-21 21:38:58,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3740 states. [2021-02-21 21:38:58,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 4345 transitions. [2021-02-21 21:38:58,730 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 4345 transitions. Word has length 268 [2021-02-21 21:38:58,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:38:58,731 INFO L480 AbstractCegarLoop]: Abstraction has 3740 states and 4345 transitions. [2021-02-21 21:38:58,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-21 21:38:58,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 4345 transitions. [2021-02-21 21:38:58,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-02-21 21:38:58,738 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:38:58,738 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:38:58,738 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-21 21:38:58,739 INFO L428 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:38:58,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:38:58,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1148524118, now seen corresponding path program 1 times [2021-02-21 21:38:58,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:38:58,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362847834] [2021-02-21 21:38:58,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:38:58,743 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:38:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:58,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:58,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:58,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:58,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:38:58,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:58,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 21:38:58,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:58,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:38:58,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:58,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:58,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:58,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:58,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:58,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:38:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:58,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:58,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:58,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-21 21:38:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:58,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:58,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:58,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 21:38:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:58,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:58,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:58,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-21 21:38:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:58,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:58,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:58,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-21 21:38:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:58,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:58,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-21 21:38:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:38:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-21 21:38:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-21 21:38:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-21 21:38:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:38:59,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 21:38:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:38:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-21 21:38:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:38:59,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 21:38:59,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-21 21:38:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:38:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:38:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 21:38:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-21 21:38:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:38:59,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:38:59,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:38:59,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:38:59,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362847834] [2021-02-21 21:38:59,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:38:59,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-21 21:38:59,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020291902] [2021-02-21 21:38:59,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-21 21:38:59,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:38:59,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-21 21:38:59,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-02-21 21:38:59,260 INFO L87 Difference]: Start difference. First operand 3740 states and 4345 transitions. Second operand 12 states. [2021-02-21 21:39:05,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:39:05,482 INFO L93 Difference]: Finished difference Result 10452 states and 12466 transitions. [2021-02-21 21:39:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-21 21:39:05,483 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 268 [2021-02-21 21:39:05,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:39:05,531 INFO L225 Difference]: With dead ends: 10452 [2021-02-21 21:39:05,531 INFO L226 Difference]: Without dead ends: 7672 [2021-02-21 21:39:05,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=353, Invalid=1369, Unknown=0, NotChecked=0, Total=1722 [2021-02-21 21:39:05,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2021-02-21 21:39:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 6301. [2021-02-21 21:39:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6301 states. [2021-02-21 21:39:07,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6301 states to 6301 states and 7426 transitions. [2021-02-21 21:39:07,088 INFO L78 Accepts]: Start accepts. Automaton has 6301 states and 7426 transitions. Word has length 268 [2021-02-21 21:39:07,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:39:07,089 INFO L480 AbstractCegarLoop]: Abstraction has 6301 states and 7426 transitions. [2021-02-21 21:39:07,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-21 21:39:07,089 INFO L276 IsEmpty]: Start isEmpty. Operand 6301 states and 7426 transitions. [2021-02-21 21:39:07,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-02-21 21:39:07,097 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:39:07,098 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:39:07,098 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-21 21:39:07,098 INFO L428 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:39:07,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:39:07,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1399302786, now seen corresponding path program 1 times [2021-02-21 21:39:07,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:39:07,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408950324] [2021-02-21 21:39:07,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:39:07,102 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:39:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:39:07,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:39:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:39:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-21 21:39:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 21:39:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-21 21:39:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-21 21:39:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:39:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:39:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-21 21:39:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:39:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-21 21:39:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-21 21:39:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-21 21:39:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-21 21:39:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:39:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:39:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 21:39:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-21 21:39:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-21 21:39:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:39:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 21:39:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 21:39:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-21 21:39:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:39:07,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:39:07,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:39:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:39:07,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408950324] [2021-02-21 21:39:07,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:39:07,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 21:39:07,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174960740] [2021-02-21 21:39:07,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 21:39:07,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:39:07,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 21:39:07,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-02-21 21:39:07,391 INFO L87 Difference]: Start difference. First operand 6301 states and 7426 transitions. Second operand 9 states. [2021-02-21 21:39:10,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:39:10,676 INFO L93 Difference]: Finished difference Result 11985 states and 14311 transitions. [2021-02-21 21:39:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-21 21:39:10,677 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 272 [2021-02-21 21:39:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:39:10,715 INFO L225 Difference]: With dead ends: 11985 [2021-02-21 21:39:10,715 INFO L226 Difference]: Without dead ends: 7490 [2021-02-21 21:39:10,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2021-02-21 21:39:10,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7490 states. [2021-02-21 21:39:11,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7490 to 6363. [2021-02-21 21:39:11,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6363 states. [2021-02-21 21:39:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6363 states to 6363 states and 7508 transitions. [2021-02-21 21:39:11,978 INFO L78 Accepts]: Start accepts. Automaton has 6363 states and 7508 transitions. Word has length 272 [2021-02-21 21:39:11,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:39:11,979 INFO L480 AbstractCegarLoop]: Abstraction has 6363 states and 7508 transitions. [2021-02-21 21:39:11,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 21:39:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 6363 states and 7508 transitions. [2021-02-21 21:39:11,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-02-21 21:39:11,987 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:39:11,988 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:39:11,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-21 21:39:11,988 INFO L428 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:39:11,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:39:11,988 INFO L82 PathProgramCache]: Analyzing trace with hash 800512033, now seen corresponding path program 1 times [2021-02-21 21:39:11,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:39:11,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800155405] [2021-02-21 21:39:11,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:39:11,992 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:39:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:39:12,015 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:39:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:39:12,041 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:39:12,176 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 21:39:12,176 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 21:39:12,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-21 21:39:12,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:39:12 BoogieIcfgContainer [2021-02-21 21:39:12,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:39:12,216 INFO L168 Benchmark]: Toolchain (without parser) took 59632.69 ms. Allocated memory was 151.0 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 127.0 MB in the beginning and 1.0 GB in the end (delta: -894.3 MB). Peak memory consumption was 481.4 MB. Max. memory is 8.0 GB. [2021-02-21 21:39:12,216 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:39:12,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.54 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 113.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-21 21:39:12,217 INFO L168 Benchmark]: Boogie Preprocessor took 50.39 ms. Allocated memory is still 151.0 MB. Free memory was 113.0 MB in the beginning and 111.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:39:12,217 INFO L168 Benchmark]: RCFGBuilder took 795.34 ms. Allocated memory is still 151.0 MB. Free memory was 111.0 MB in the beginning and 103.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-21 21:39:12,217 INFO L168 Benchmark]: TraceAbstraction took 58310.34 ms. Allocated memory was 151.0 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 102.5 MB in the beginning and 1.0 GB in the end (delta: -918.9 MB). Peak memory consumption was 456.3 MB. Max. memory is 8.0 GB. [2021-02-21 21:39:12,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 454.54 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 113.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.39 ms. Allocated memory is still 151.0 MB. Free memory was 113.0 MB in the beginning and 111.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 795.34 ms. Allocated memory is still 151.0 MB. Free memory was 111.0 MB in the beginning and 103.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 58310.34 ms. Allocated memory was 151.0 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 102.5 MB in the beginning and 1.0 GB in the end (delta: -918.9 MB). Peak memory consumption was 456.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int m_pc = 0; [L17] int t1_pc = 0; [L18] int m_st ; [L19] int t1_st ; [L20] int m_i ; [L21] int t1_i ; [L22] int M_E = 2; [L23] int T1_E = 2; [L24] int E_M = 2; [L25] int E_1 = 2; [L29] int token ; [L31] int local ; [L477] int __retres1 ; [L481] CALL init_model() [L392] m_i = 1 [L393] t1_i = 1 [L481] RET init_model() [L482] CALL start_simulation() [L418] int kernel_st ; [L419] int tmp ; [L420] int tmp___0 ; [L424] kernel_st = 0 [L425] FCALL update_channels() [L426] CALL init_threads() [L174] COND TRUE m_i == 1 [L175] m_st = 0 [L179] COND TRUE t1_i == 1 [L180] t1_st = 0 [L426] RET init_threads() [L427] CALL fire_delta_events() [L263] COND FALSE !(M_E == 0) [L268] COND FALSE !(T1_E == 0) [L273] COND FALSE !(E_M == 0) [L278] COND FALSE !(E_1 == 0) [L427] RET fire_delta_events() [L428] CALL activate_threads() [L316] int tmp ; [L317] int tmp___0 ; [L321] CALL, EXPR is_master_triggered() [L125] int __retres1 ; [L128] COND FALSE !(m_pc == 1) [L138] __retres1 = 0 [L140] return (__retres1); [L321] RET, EXPR is_master_triggered() [L321] tmp = is_master_triggered() [L323] COND FALSE !(\read(tmp)) [L329] CALL, EXPR is_transmit1_triggered() [L144] int __retres1 ; [L147] COND FALSE !(t1_pc == 1) [L157] __retres1 = 0 [L159] return (__retres1); [L329] RET, EXPR is_transmit1_triggered() [L329] tmp___0 = is_transmit1_triggered() [L331] COND FALSE !(\read(tmp___0)) [L428] RET activate_threads() [L429] CALL reset_delta_events() [L291] COND FALSE !(M_E == 1) [L296] COND FALSE !(T1_E == 1) [L301] COND FALSE !(E_M == 1) [L306] COND FALSE !(E_1 == 1) [L429] RET reset_delta_events() [L432] COND TRUE 1 [L435] kernel_st = 1 [L436] CALL eval() [L210] int tmp ; [L214] COND TRUE 1 [L217] CALL, EXPR exists_runnable_thread() [L189] int __retres1 ; [L192] COND TRUE m_st == 0 [L193] __retres1 = 1 [L205] return (__retres1); [L217] RET, EXPR exists_runnable_thread() [L217] tmp = exists_runnable_thread() [L219] COND TRUE \read(tmp) [L224] COND TRUE m_st == 0 [L225] int tmp_ndt_1; [L226] tmp_ndt_1 = __VERIFIER_nondet_int() [L227] COND FALSE !(\read(tmp_ndt_1)) [L238] COND TRUE t1_st == 0 [L239] int tmp_ndt_2; [L240] tmp_ndt_2 = __VERIFIER_nondet_int() [L241] COND TRUE \read(tmp_ndt_2) [L243] t1_st = 1 [L244] CALL transmit1() [L92] COND TRUE t1_pc == 0 [L103] COND TRUE 1 [L105] t1_pc = 1 [L106] t1_st = 2 [L244] RET transmit1() [L214] COND TRUE 1 [L217] CALL, EXPR exists_runnable_thread() [L189] int __retres1 ; [L192] COND TRUE m_st == 0 [L193] __retres1 = 1 [L205] return (__retres1); [L217] RET, EXPR exists_runnable_thread() [L217] tmp = exists_runnable_thread() [L219] COND TRUE \read(tmp) [L224] COND TRUE m_st == 0 [L225] int tmp_ndt_1; [L226] tmp_ndt_1 = __VERIFIER_nondet_int() [L227] COND TRUE \read(tmp_ndt_1) [L229] m_st = 1 [L230] CALL master() [L34] int tmp_var = __VERIFIER_nondet_int(); [L36] COND TRUE m_pc == 0 [L47] COND TRUE 1 [L50] token = __VERIFIER_nondet_int() [L51] local = token [L52] E_1 = 1 [L53] CALL immediate_notify() [L345] CALL activate_threads() [L316] int tmp ; [L317] int tmp___0 ; [L321] CALL, EXPR is_master_triggered() [L125] int __retres1 ; [L128] COND FALSE !(m_pc == 1) [L138] __retres1 = 0 [L140] return (__retres1); [L321] RET, EXPR is_master_triggered() [L321] tmp = is_master_triggered() [L323] COND FALSE !(\read(tmp)) [L329] CALL, EXPR is_transmit1_triggered() [L144] int __retres1 ; [L147] COND TRUE t1_pc == 1 [L148] COND TRUE E_1 == 1 [L149] __retres1 = 1 [L159] return (__retres1); [L329] RET, EXPR is_transmit1_triggered() [L329] tmp___0 = is_transmit1_triggered() [L331] COND TRUE \read(tmp___0) [L332] t1_st = 0 [L345] RET activate_threads() [L53] RET immediate_notify() [L54] E_1 = 2 [L55] m_pc = 1 [L56] m_st = 2 [L230] RET master() [L238] COND TRUE t1_st == 0 [L239] int tmp_ndt_2; [L240] tmp_ndt_2 = __VERIFIER_nondet_int() [L241] COND TRUE \read(tmp_ndt_2) [L243] t1_st = 1 [L244] CALL transmit1() [L92] COND FALSE !(t1_pc == 0) [L95] COND TRUE t1_pc == 1 [L111] token += 1 [L112] E_M = 1 [L113] CALL immediate_notify() [L345] CALL activate_threads() [L316] int tmp ; [L317] int tmp___0 ; [L321] CALL, EXPR is_master_triggered() [L125] int __retres1 ; [L128] COND TRUE m_pc == 1 [L129] COND TRUE E_M == 1 [L130] __retres1 = 1 [L140] return (__retres1); [L321] RET, EXPR is_master_triggered() [L321] tmp = is_master_triggered() [L323] COND TRUE \read(tmp) [L324] m_st = 0 [L329] CALL, EXPR is_transmit1_triggered() [L144] int __retres1 ; [L147] COND TRUE t1_pc == 1 [L148] COND FALSE !(E_1 == 1) [L157] __retres1 = 0 [L159] return (__retres1); [L329] RET, EXPR is_transmit1_triggered() [L329] tmp___0 = is_transmit1_triggered() [L331] COND FALSE !(\read(tmp___0)) [L345] RET activate_threads() [L113] RET immediate_notify() [L114] E_M = 2 [L103] COND TRUE 1 [L105] t1_pc = 1 [L106] t1_st = 2 [L244] RET transmit1() [L214] COND TRUE 1 [L217] CALL, EXPR exists_runnable_thread() [L189] int __retres1 ; [L192] COND TRUE m_st == 0 [L193] __retres1 = 1 [L205] return (__retres1); [L217] RET, EXPR exists_runnable_thread() [L217] tmp = exists_runnable_thread() [L219] COND TRUE \read(tmp) [L224] COND TRUE m_st == 0 [L225] int tmp_ndt_1; [L226] tmp_ndt_1 = __VERIFIER_nondet_int() [L227] COND TRUE \read(tmp_ndt_1) [L229] m_st = 1 [L230] CALL master() [L34] int tmp_var = __VERIFIER_nondet_int(); [L36] COND FALSE !(m_pc == 0) [L39] COND TRUE m_pc == 1 [L61] COND FALSE !(token != local + 1) [L66] COND TRUE tmp_var <= 5 [L67] COND TRUE tmp_var >= 5 [L72] COND TRUE tmp_var <= 5 [L73] COND TRUE tmp_var >= 5 [L74] COND TRUE tmp_var == 5 [L75] CALL error() [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 239 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 58.2s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 46.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3275 SDtfs, 17720 SDslu, 1400 SDs, 0 SdLazy, 21029 SolverSat, 6336 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 929 GetRequests, 536 SyntacticMatches, 2 SemanticMatches, 391 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7214 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6363occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 7953 StatesRemovedByMinimization, 10 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...