/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 14:08:58,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 14:08:58,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 14:08:58,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 14:08:58,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 14:08:58,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 14:08:58,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 14:08:58,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 14:08:58,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 14:08:58,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 14:08:58,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 14:08:58,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 14:08:58,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 14:08:58,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 14:08:58,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 14:08:58,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 14:08:58,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 14:08:58,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 14:08:58,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 14:08:58,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 14:08:58,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 14:08:58,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 14:08:58,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 14:08:58,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 14:08:58,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 14:08:58,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 14:08:58,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 14:08:58,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 14:08:58,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 14:08:58,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 14:08:58,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 14:08:58,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 14:08:58,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 14:08:58,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 14:08:58,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 14:08:58,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 14:08:58,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 14:08:58,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 14:08:58,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 14:08:58,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 14:08:58,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 14:08:58,337 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 14:08:58,348 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 14:08:58,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 14:08:58,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 14:08:58,351 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 14:08:58,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 14:08:58,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 14:08:58,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 14:08:58,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 14:08:58,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 14:08:58,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 14:08:58,352 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 14:08:58,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 14:08:58,352 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 14:08:58,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 14:08:58,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 14:08:58,353 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 14:08:58,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 14:08:58,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 14:08:58,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 14:08:58,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 14:08:58,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 14:08:58,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 14:08:58,355 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 14:08:58,680 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 14:08:58,697 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 14:08:58,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 14:08:58,704 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 14:08:58,704 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 14:08:58,705 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-07-07 14:08:58,806 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c60ca37f/59593fddce56488bb0c9088d18ca9390/FLAGb3bac2ee8 [2020-07-07 14:08:59,570 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 14:08:59,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-07-07 14:08:59,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c60ca37f/59593fddce56488bb0c9088d18ca9390/FLAGb3bac2ee8 [2020-07-07 14:08:59,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c60ca37f/59593fddce56488bb0c9088d18ca9390 [2020-07-07 14:08:59,782 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 14:08:59,785 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 14:08:59,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 14:08:59,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 14:08:59,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 14:08:59,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:08:59" (1/1) ... [2020-07-07 14:08:59,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@172503d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:08:59, skipping insertion in model container [2020-07-07 14:08:59,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:08:59" (1/1) ... [2020-07-07 14:08:59,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 14:08:59,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 14:09:00,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:09:00,755 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 14:09:01,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:09:01,271 INFO L208 MainTranslator]: Completed translation [2020-07-07 14:09:01,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:09:01 WrapperNode [2020-07-07 14:09:01,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 14:09:01,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 14:09:01,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 14:09:01,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 14:09:01,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:09:01" (1/1) ... [2020-07-07 14:09:01,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:09:01" (1/1) ... [2020-07-07 14:09:01,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:09:01" (1/1) ... [2020-07-07 14:09:01,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:09:01" (1/1) ... [2020-07-07 14:09:01,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:09:01" (1/1) ... [2020-07-07 14:09:01,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:09:01" (1/1) ... [2020-07-07 14:09:01,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:09:01" (1/1) ... [2020-07-07 14:09:01,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 14:09:01,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 14:09:01,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 14:09:01,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 14:09:01,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:09:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 14:09:01,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 14:09:01,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 14:09:01,525 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 14:09:01,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 14:09:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 14:09:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-07 14:09:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-07 14:09:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-07-07 14:09:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 14:09:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 14:09:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-07-07 14:09:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-07-07 14:09:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-07-07 14:09:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-07-07 14:09:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-07-07 14:09:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-07-07 14:09:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-07 14:09:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 14:09:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 14:09:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 14:09:03,931 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 14:09:03,932 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 14:09:03,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:09:03 BoogieIcfgContainer [2020-07-07 14:09:03,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 14:09:03,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 14:09:03,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 14:09:03,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 14:09:03,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 02:08:59" (1/3) ... [2020-07-07 14:09:03,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b64029c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:09:03, skipping insertion in model container [2020-07-07 14:09:03,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:09:01" (2/3) ... [2020-07-07 14:09:03,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b64029c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:09:03, skipping insertion in model container [2020-07-07 14:09:03,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:09:03" (3/3) ... [2020-07-07 14:09:03,989 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-07-07 14:09:04,001 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 14:09:04,014 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-07-07 14:09:04,030 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-07-07 14:09:04,057 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 14:09:04,058 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 14:09:04,058 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 14:09:04,058 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 14:09:04,058 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 14:09:04,058 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 14:09:04,058 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 14:09:04,059 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 14:09:04,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states. [2020-07-07 14:09:04,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-07-07 14:09:04,151 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:09:04,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:09:04,154 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:09:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:09:04,163 INFO L82 PathProgramCache]: Analyzing trace with hash -219806221, now seen corresponding path program 1 times [2020-07-07 14:09:04,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:09:04,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462435198] [2020-07-07 14:09:04,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:09:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:05,795 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:09:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:06,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:09:06,268 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:09:06,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462435198] [2020-07-07 14:09:06,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:09:06,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 14:09:06,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628463895] [2020-07-07 14:09:06,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 14:09:06,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:09:06,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 14:09:06,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:09:06,329 INFO L87 Difference]: Start difference. First operand 1127 states. Second operand 4 states. [2020-07-07 14:09:11,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:09:11,551 INFO L93 Difference]: Finished difference Result 1833 states and 2360 transitions. [2020-07-07 14:09:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 14:09:11,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 423 [2020-07-07 14:09:11,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:09:11,617 INFO L225 Difference]: With dead ends: 1833 [2020-07-07 14:09:11,617 INFO L226 Difference]: Without dead ends: 1303 [2020-07-07 14:09:11,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:09:11,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2020-07-07 14:09:11,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1296. [2020-07-07 14:09:11,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1296 states. [2020-07-07 14:09:11,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1545 transitions. [2020-07-07 14:09:11,806 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1545 transitions. Word has length 423 [2020-07-07 14:09:11,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:09:11,816 INFO L479 AbstractCegarLoop]: Abstraction has 1296 states and 1545 transitions. [2020-07-07 14:09:11,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 14:09:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1545 transitions. [2020-07-07 14:09:11,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-07-07 14:09:11,835 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:09:11,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:09:11,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 14:09:11,837 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:09:11,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:09:11,838 INFO L82 PathProgramCache]: Analyzing trace with hash -74379501, now seen corresponding path program 1 times [2020-07-07 14:09:11,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:09:11,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343518959] [2020-07-07 14:09:11,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:09:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:12,774 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:09:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:13,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:09:13,228 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:09:13,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343518959] [2020-07-07 14:09:13,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:09:13,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 14:09:13,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436004901] [2020-07-07 14:09:13,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 14:09:13,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:09:13,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 14:09:13,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 14:09:13,241 INFO L87 Difference]: Start difference. First operand 1296 states and 1545 transitions. Second operand 5 states. [2020-07-07 14:09:20,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:09:20,984 INFO L93 Difference]: Finished difference Result 3469 states and 4190 transitions. [2020-07-07 14:09:20,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 14:09:20,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 423 [2020-07-07 14:09:20,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:09:21,000 INFO L225 Difference]: With dead ends: 3469 [2020-07-07 14:09:21,001 INFO L226 Difference]: Without dead ends: 2356 [2020-07-07 14:09:21,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 14:09:21,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2020-07-07 14:09:21,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2234. [2020-07-07 14:09:21,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2234 states. [2020-07-07 14:09:21,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 2699 transitions. [2020-07-07 14:09:21,156 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 2699 transitions. Word has length 423 [2020-07-07 14:09:21,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:09:21,157 INFO L479 AbstractCegarLoop]: Abstraction has 2234 states and 2699 transitions. [2020-07-07 14:09:21,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 14:09:21,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 2699 transitions. [2020-07-07 14:09:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2020-07-07 14:09:21,165 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:09:21,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:09:21,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 14:09:21,166 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:09:21,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:09:21,167 INFO L82 PathProgramCache]: Analyzing trace with hash -860561599, now seen corresponding path program 1 times [2020-07-07 14:09:21,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:09:21,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069189614] [2020-07-07 14:09:21,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:09:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:21,599 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:09:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:21,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:09:21,890 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:09:21,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069189614] [2020-07-07 14:09:21,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:09:21,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 14:09:21,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770446663] [2020-07-07 14:09:21,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 14:09:21,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:09:21,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 14:09:21,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:09:21,907 INFO L87 Difference]: Start difference. First operand 2234 states and 2699 transitions. Second operand 4 states. [2020-07-07 14:09:29,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:09:29,058 INFO L93 Difference]: Finished difference Result 6299 states and 7670 transitions. [2020-07-07 14:09:29,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 14:09:29,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 424 [2020-07-07 14:09:29,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:09:29,083 INFO L225 Difference]: With dead ends: 6299 [2020-07-07 14:09:29,084 INFO L226 Difference]: Without dead ends: 4282 [2020-07-07 14:09:29,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:09:29,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2020-07-07 14:09:29,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 2236. [2020-07-07 14:09:29,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2236 states. [2020-07-07 14:09:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2701 transitions. [2020-07-07 14:09:29,274 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2701 transitions. Word has length 424 [2020-07-07 14:09:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:09:29,276 INFO L479 AbstractCegarLoop]: Abstraction has 2236 states and 2701 transitions. [2020-07-07 14:09:29,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 14:09:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2701 transitions. [2020-07-07 14:09:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2020-07-07 14:09:29,283 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:09:29,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:09:29,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 14:09:29,285 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:09:29,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:09:29,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1010739082, now seen corresponding path program 1 times [2020-07-07 14:09:29,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:09:29,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978367437] [2020-07-07 14:09:29,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:09:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:29,773 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:09:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:30,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:09:30,005 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:09:30,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978367437] [2020-07-07 14:09:30,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:09:30,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 14:09:30,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651289571] [2020-07-07 14:09:30,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 14:09:30,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:09:30,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 14:09:30,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:09:30,008 INFO L87 Difference]: Start difference. First operand 2236 states and 2701 transitions. Second operand 4 states. [2020-07-07 14:09:36,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:09:36,640 INFO L93 Difference]: Finished difference Result 5992 states and 7288 transitions. [2020-07-07 14:09:36,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 14:09:36,645 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 425 [2020-07-07 14:09:36,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:09:36,666 INFO L225 Difference]: With dead ends: 5992 [2020-07-07 14:09:36,667 INFO L226 Difference]: Without dead ends: 4182 [2020-07-07 14:09:36,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:09:36,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2020-07-07 14:09:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 4060. [2020-07-07 14:09:37,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4060 states. [2020-07-07 14:09:37,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4060 states to 4060 states and 4932 transitions. [2020-07-07 14:09:37,019 INFO L78 Accepts]: Start accepts. Automaton has 4060 states and 4932 transitions. Word has length 425 [2020-07-07 14:09:37,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:09:37,020 INFO L479 AbstractCegarLoop]: Abstraction has 4060 states and 4932 transitions. [2020-07-07 14:09:37,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 14:09:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 4060 states and 4932 transitions. [2020-07-07 14:09:37,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2020-07-07 14:09:37,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:09:37,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:09:37,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 14:09:37,031 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:09:37,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:09:37,032 INFO L82 PathProgramCache]: Analyzing trace with hash 398825718, now seen corresponding path program 1 times [2020-07-07 14:09:37,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:09:37,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898547993] [2020-07-07 14:09:37,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:09:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:37,580 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:09:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:37,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:09:37,780 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:09:37,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898547993] [2020-07-07 14:09:37,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:09:37,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 14:09:37,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393906203] [2020-07-07 14:09:37,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 14:09:37,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:09:37,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 14:09:37,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 14:09:37,783 INFO L87 Difference]: Start difference. First operand 4060 states and 4932 transitions. Second operand 5 states. [2020-07-07 14:09:44,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:09:44,701 INFO L93 Difference]: Finished difference Result 11306 states and 13778 transitions. [2020-07-07 14:09:44,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 14:09:44,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 425 [2020-07-07 14:09:44,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:09:44,735 INFO L225 Difference]: With dead ends: 11306 [2020-07-07 14:09:44,735 INFO L226 Difference]: Without dead ends: 7434 [2020-07-07 14:09:44,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 14:09:44,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7434 states. [2020-07-07 14:09:45,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7434 to 7321. [2020-07-07 14:09:45,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7321 states. [2020-07-07 14:09:45,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 8875 transitions. [2020-07-07 14:09:45,247 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 8875 transitions. Word has length 425 [2020-07-07 14:09:45,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:09:45,248 INFO L479 AbstractCegarLoop]: Abstraction has 7321 states and 8875 transitions. [2020-07-07 14:09:45,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 14:09:45,249 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 8875 transitions. [2020-07-07 14:09:45,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2020-07-07 14:09:45,262 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:09:45,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:09:45,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 14:09:45,263 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:09:45,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:09:45,264 INFO L82 PathProgramCache]: Analyzing trace with hash 481574245, now seen corresponding path program 1 times [2020-07-07 14:09:45,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:09:45,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872026159] [2020-07-07 14:09:45,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:09:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:45,718 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:09:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:45,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:09:45,877 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:09:45,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872026159] [2020-07-07 14:09:45,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:09:45,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 14:09:45,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914764584] [2020-07-07 14:09:45,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 14:09:45,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:09:45,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 14:09:45,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 14:09:45,880 INFO L87 Difference]: Start difference. First operand 7321 states and 8875 transitions. Second operand 5 states. [2020-07-07 14:09:52,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:09:52,685 INFO L93 Difference]: Finished difference Result 21038 states and 25512 transitions. [2020-07-07 14:09:52,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 14:09:52,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 425 [2020-07-07 14:09:52,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:09:52,752 INFO L225 Difference]: With dead ends: 21038 [2020-07-07 14:09:52,753 INFO L226 Difference]: Without dead ends: 13980 [2020-07-07 14:09:52,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 14:09:52,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13980 states. [2020-07-07 14:09:53,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13980 to 13853. [2020-07-07 14:09:53,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13853 states. [2020-07-07 14:09:53,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13853 states to 13853 states and 16718 transitions. [2020-07-07 14:09:53,765 INFO L78 Accepts]: Start accepts. Automaton has 13853 states and 16718 transitions. Word has length 425 [2020-07-07 14:09:53,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:09:53,766 INFO L479 AbstractCegarLoop]: Abstraction has 13853 states and 16718 transitions. [2020-07-07 14:09:53,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 14:09:53,766 INFO L276 IsEmpty]: Start isEmpty. Operand 13853 states and 16718 transitions. [2020-07-07 14:09:53,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2020-07-07 14:09:53,801 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:09:53,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:09:53,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 14:09:53,802 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:09:53,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:09:53,802 INFO L82 PathProgramCache]: Analyzing trace with hash -2068542717, now seen corresponding path program 1 times [2020-07-07 14:09:53,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:09:53,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375904707] [2020-07-07 14:09:53,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:09:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:54,166 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:09:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:09:54,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:09:54,274 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:09:54,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375904707] [2020-07-07 14:09:54,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:09:54,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 14:09:54,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963970552] [2020-07-07 14:09:54,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 14:09:54,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:09:54,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 14:09:54,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:09:54,277 INFO L87 Difference]: Start difference. First operand 13853 states and 16718 transitions. Second operand 4 states. [2020-07-07 14:10:03,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:10:03,708 INFO L93 Difference]: Finished difference Result 40968 states and 49482 transitions. [2020-07-07 14:10:03,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 14:10:03,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 426 [2020-07-07 14:10:03,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:10:03,784 INFO L225 Difference]: With dead ends: 40968 [2020-07-07 14:10:03,784 INFO L226 Difference]: Without dead ends: 27428 [2020-07-07 14:10:03,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:10:03,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27428 states. [2020-07-07 14:10:05,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27428 to 13863. [2020-07-07 14:10:05,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13863 states. [2020-07-07 14:10:05,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13863 states to 13863 states and 16728 transitions. [2020-07-07 14:10:05,184 INFO L78 Accepts]: Start accepts. Automaton has 13863 states and 16728 transitions. Word has length 426 [2020-07-07 14:10:05,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:10:05,185 INFO L479 AbstractCegarLoop]: Abstraction has 13863 states and 16728 transitions. [2020-07-07 14:10:05,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 14:10:05,185 INFO L276 IsEmpty]: Start isEmpty. Operand 13863 states and 16728 transitions. [2020-07-07 14:10:05,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2020-07-07 14:10:05,203 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:10:05,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:10:05,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 14:10:05,204 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:10:05,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:10:05,204 INFO L82 PathProgramCache]: Analyzing trace with hash 148387208, now seen corresponding path program 1 times [2020-07-07 14:10:05,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:10:05,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714614224] [2020-07-07 14:10:05,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:10:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:10:05,598 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:10:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:10:05,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:10:05,749 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:10:05,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714614224] [2020-07-07 14:10:05,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:10:05,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 14:10:05,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864754738] [2020-07-07 14:10:05,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 14:10:05,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:10:05,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 14:10:05,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:10:05,751 INFO L87 Difference]: Start difference. First operand 13863 states and 16728 transitions. Second operand 4 states. [2020-07-07 14:10:14,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:10:14,549 INFO L93 Difference]: Finished difference Result 36258 states and 43746 transitions. [2020-07-07 14:10:14,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 14:10:14,550 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 427 [2020-07-07 14:10:14,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:10:14,601 INFO L225 Difference]: With dead ends: 36258 [2020-07-07 14:10:14,601 INFO L226 Difference]: Without dead ends: 23735 [2020-07-07 14:10:14,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:10:14,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23735 states. [2020-07-07 14:10:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23735 to 23608. [2020-07-07 14:10:16,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23608 states. [2020-07-07 14:10:16,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23608 states to 23608 states and 28284 transitions. [2020-07-07 14:10:16,701 INFO L78 Accepts]: Start accepts. Automaton has 23608 states and 28284 transitions. Word has length 427 [2020-07-07 14:10:16,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:10:16,702 INFO L479 AbstractCegarLoop]: Abstraction has 23608 states and 28284 transitions. [2020-07-07 14:10:16,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 14:10:16,702 INFO L276 IsEmpty]: Start isEmpty. Operand 23608 states and 28284 transitions. [2020-07-07 14:10:16,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2020-07-07 14:10:16,729 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:10:16,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:10:16,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 14:10:16,730 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:10:16,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:10:16,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1019816440, now seen corresponding path program 1 times [2020-07-07 14:10:16,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:10:16,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394215484] [2020-07-07 14:10:16,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:10:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:10:17,374 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:10:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:10:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:10:17,616 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:10:17,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394215484] [2020-07-07 14:10:17,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:10:17,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 14:10:17,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277007092] [2020-07-07 14:10:17,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 14:10:17,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:10:17,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 14:10:17,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 14:10:17,619 INFO L87 Difference]: Start difference. First operand 23608 states and 28284 transitions. Second operand 5 states. [2020-07-07 14:10:28,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:10:28,880 INFO L93 Difference]: Finished difference Result 67672 states and 81016 transitions. [2020-07-07 14:10:28,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 14:10:28,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 427 [2020-07-07 14:10:28,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:10:28,973 INFO L225 Difference]: With dead ends: 67672 [2020-07-07 14:10:28,973 INFO L226 Difference]: Without dead ends: 44353 [2020-07-07 14:10:29,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 14:10:29,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44353 states. [2020-07-07 14:10:32,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44353 to 44245. [2020-07-07 14:10:32,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44245 states. [2020-07-07 14:10:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44245 states to 44245 states and 52612 transitions. [2020-07-07 14:10:33,011 INFO L78 Accepts]: Start accepts. Automaton has 44245 states and 52612 transitions. Word has length 427 [2020-07-07 14:10:33,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:10:33,011 INFO L479 AbstractCegarLoop]: Abstraction has 44245 states and 52612 transitions. [2020-07-07 14:10:33,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 14:10:33,012 INFO L276 IsEmpty]: Start isEmpty. Operand 44245 states and 52612 transitions. [2020-07-07 14:10:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2020-07-07 14:10:33,056 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:10:33,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:10:33,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 14:10:33,057 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:10:33,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:10:33,057 INFO L82 PathProgramCache]: Analyzing trace with hash 996725519, now seen corresponding path program 1 times [2020-07-07 14:10:33,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:10:33,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4125728] [2020-07-07 14:10:33,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:10:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:10:33,552 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:10:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:10:33,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:10:33,809 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:10:33,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4125728] [2020-07-07 14:10:33,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:10:33,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 14:10:33,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587133537] [2020-07-07 14:10:33,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 14:10:33,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:10:33,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 14:10:33,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 14:10:33,814 INFO L87 Difference]: Start difference. First operand 44245 states and 52612 transitions. Second operand 5 states. [2020-07-07 14:10:45,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:10:45,975 INFO L93 Difference]: Finished difference Result 88958 states and 105723 transitions. [2020-07-07 14:10:45,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 14:10:45,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 427 [2020-07-07 14:10:45,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:10:46,065 INFO L225 Difference]: With dead ends: 88958 [2020-07-07 14:10:46,065 INFO L226 Difference]: Without dead ends: 45483 [2020-07-07 14:10:46,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 14:10:46,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45483 states. [2020-07-07 14:10:50,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45483 to 44807. [2020-07-07 14:10:50,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44807 states. [2020-07-07 14:10:50,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44807 states to 44807 states and 53221 transitions. [2020-07-07 14:10:50,394 INFO L78 Accepts]: Start accepts. Automaton has 44807 states and 53221 transitions. Word has length 427 [2020-07-07 14:10:50,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:10:50,395 INFO L479 AbstractCegarLoop]: Abstraction has 44807 states and 53221 transitions. [2020-07-07 14:10:50,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 14:10:50,395 INFO L276 IsEmpty]: Start isEmpty. Operand 44807 states and 53221 transitions. [2020-07-07 14:10:50,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2020-07-07 14:10:50,441 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:10:50,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:10:50,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 14:10:50,443 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:10:50,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:10:50,443 INFO L82 PathProgramCache]: Analyzing trace with hash 799242349, now seen corresponding path program 1 times [2020-07-07 14:10:50,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:10:50,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489216800] [2020-07-07 14:10:50,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:10:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:10:50,856 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:10:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:10:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:10:51,035 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:10:51,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489216800] [2020-07-07 14:10:51,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:10:51,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 14:10:51,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422021778] [2020-07-07 14:10:51,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 14:10:51,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:10:51,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 14:10:51,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:10:51,038 INFO L87 Difference]: Start difference. First operand 44807 states and 53221 transitions. Second operand 4 states. [2020-07-07 14:11:07,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:11:07,591 INFO L93 Difference]: Finished difference Result 131339 states and 156141 transitions. [2020-07-07 14:11:07,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 14:11:07,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 428 [2020-07-07 14:11:07,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:11:07,734 INFO L225 Difference]: With dead ends: 131339 [2020-07-07 14:11:07,735 INFO L226 Difference]: Without dead ends: 88789 [2020-07-07 14:11:07,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:11:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88789 states. [2020-07-07 14:11:12,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88789 to 44847. [2020-07-07 14:11:12,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44847 states. [2020-07-07 14:11:12,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44847 states to 44847 states and 53261 transitions. [2020-07-07 14:11:12,947 INFO L78 Accepts]: Start accepts. Automaton has 44847 states and 53261 transitions. Word has length 428 [2020-07-07 14:11:12,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:11:12,947 INFO L479 AbstractCegarLoop]: Abstraction has 44847 states and 53261 transitions. [2020-07-07 14:11:12,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 14:11:12,947 INFO L276 IsEmpty]: Start isEmpty. Operand 44847 states and 53261 transitions. [2020-07-07 14:11:12,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2020-07-07 14:11:12,994 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:11:12,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:11:12,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 14:11:12,995 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:11:12,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:11:12,996 INFO L82 PathProgramCache]: Analyzing trace with hash -658099086, now seen corresponding path program 1 times [2020-07-07 14:11:12,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:11:12,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283981862] [2020-07-07 14:11:12,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:11:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:11:13,491 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 14:11:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:11:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:11:13,642 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:11:13,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283981862] [2020-07-07 14:11:13,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:11:13,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 14:11:13,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223055557] [2020-07-07 14:11:13,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 14:11:13,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:11:13,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 14:11:13,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 14:11:13,645 INFO L87 Difference]: Start difference. First operand 44847 states and 53261 transitions. Second operand 5 states. [2020-07-07 14:11:27,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:11:27,169 INFO L93 Difference]: Finished difference Result 91203 states and 108173 transitions. [2020-07-07 14:11:27,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 14:11:27,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 429 [2020-07-07 14:11:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:11:27,246 INFO L225 Difference]: With dead ends: 91203 [2020-07-07 14:11:27,246 INFO L226 Difference]: Without dead ends: 46989 [2020-07-07 14:11:27,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 14:11:27,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46989 states. [2020-07-07 14:11:32,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46989 to 46015. [2020-07-07 14:11:32,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46015 states. [2020-07-07 14:11:32,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46015 states to 46015 states and 54503 transitions. [2020-07-07 14:11:32,391 INFO L78 Accepts]: Start accepts. Automaton has 46015 states and 54503 transitions. Word has length 429 [2020-07-07 14:11:32,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:11:32,392 INFO L479 AbstractCegarLoop]: Abstraction has 46015 states and 54503 transitions. [2020-07-07 14:11:32,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 14:11:32,392 INFO L276 IsEmpty]: Start isEmpty. Operand 46015 states and 54503 transitions. [2020-07-07 14:11:32,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2020-07-07 14:11:32,424 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:11:32,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:11:32,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 14:11:32,425 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:11:32,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:11:32,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1307329007, now seen corresponding path program 1 times [2020-07-07 14:11:32,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:11:32,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758090501] [2020-07-07 14:11:32,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:11:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 14:11:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 14:11:33,022 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:11:33,023 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 14:11:33,023 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 14:11:33,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-07 14:11:33,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 02:11:33 BoogieIcfgContainer [2020-07-07 14:11:33,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 14:11:33,096 INFO L168 Benchmark]: Toolchain (without parser) took 153311.93 ms. Allocated memory was 136.8 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 98.8 MB in the beginning and 829.7 MB in the end (delta: -730.9 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2020-07-07 14:11:33,097 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 136.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 14:11:33,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1486.97 ms. Allocated memory was 136.8 MB in the beginning and 203.9 MB in the end (delta: 67.1 MB). Free memory was 98.6 MB in the beginning and 164.7 MB in the end (delta: -66.1 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2020-07-07 14:11:33,099 INFO L168 Benchmark]: Boogie Preprocessor took 132.17 ms. Allocated memory is still 203.9 MB. Free memory was 164.7 MB in the beginning and 159.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-07 14:11:33,100 INFO L168 Benchmark]: RCFGBuilder took 2565.69 ms. Allocated memory was 203.9 MB in the beginning and 252.7 MB in the end (delta: 48.8 MB). Free memory was 159.6 MB in the beginning and 219.4 MB in the end (delta: -59.8 MB). Peak memory consumption was 112.9 MB. Max. memory is 7.1 GB. [2020-07-07 14:11:33,101 INFO L168 Benchmark]: TraceAbstraction took 149120.29 ms. Allocated memory was 252.7 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 219.4 MB in the beginning and 829.7 MB in the end (delta: -610.3 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2020-07-07 14:11:33,105 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 136.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1486.97 ms. Allocated memory was 136.8 MB in the beginning and 203.9 MB in the end (delta: 67.1 MB). Free memory was 98.6 MB in the beginning and 164.7 MB in the end (delta: -66.1 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.17 ms. Allocated memory is still 203.9 MB. Free memory was 164.7 MB in the beginning and 159.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2565.69 ms. Allocated memory was 203.9 MB in the beginning and 252.7 MB in the end (delta: 48.8 MB). Free memory was 159.6 MB in the beginning and 219.4 MB in the end (delta: -59.8 MB). Peak memory consumption was 112.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 149120.29 ms. Allocated memory was 252.7 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 219.4 MB in the beginning and 829.7 MB in the end (delta: -610.3 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 793]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1] int __return_main; [L14] msg_t nomsg = (msg_t )-1; [L15] port_t p12 = 0; [L16] char p12_old = '\x0'; [L17] char p12_new = '\x0'; [L18] _Bool ep12 = 0; [L19] port_t p13 = 0; [L20] char p13_old = '\x0'; [L21] char p13_new = '\x0'; [L22] _Bool ep13 = 0; [L23] port_t p21 = 0; [L24] char p21_old = '\x0'; [L25] char p21_new = '\x0'; [L26] _Bool ep21 = 0; [L27] port_t p23 = 0; [L28] char p23_old = '\x0'; [L29] char p23_new = '\x0'; [L30] _Bool ep23 = 0; [L31] port_t p31 = 0; [L32] char p31_old = '\x0'; [L33] char p31_new = '\x0'; [L34] _Bool ep31 = 0; [L35] port_t p32 = 0; [L36] char p32_old = '\x0'; [L37] char p32_new = '\x0'; [L38] _Bool ep32 = 0; [L39] char id1 = '\x0'; [L40] char r1 = '\x0'; [L41] char st1 = '\x0'; [L42] char nl1 = '\x0'; [L43] char m1 = '\x0'; [L44] char max1 = '\x0'; [L45] _Bool mode1 = 0; [L46] char id2 = '\x0'; [L47] char r2 = '\x0'; [L48] char st2 = '\x0'; [L49] char nl2 = '\x0'; [L50] char m2 = '\x0'; [L51] char max2 = '\x0'; [L52] _Bool mode2 = 0; [L53] char id3 = '\x0'; [L54] char r3 = '\x0'; [L55] char st3 = '\x0'; [L56] char nl3 = '\x0'; [L57] char m3 = '\x0'; [L58] char max3 = '\x0'; [L59] _Bool mode3 = 0; [L63] void (*nodes[3])() = { &node1, &node2, &node3 }; [L67] int __return_1708; [L68] int __return_1836; [L69] int __return_1954; [L70] int __return_2075; [L71] int __return_2801; [L72] int __return_2770; [L73] int __return_2712; [L74] int __return_2678; [L75] int __tmp_2199_0; [L76] int __return_2307; [L77] int __return_2212; [L78] int __return_2575; [L79] int __return_2541; [L80] int __return_2462; [L81] int __return_2198; [L84] int main__c1; [L85] int main__i2; [L86] main__c1 = 0 [L87] ep12 = __VERIFIER_nondet_bool() [L88] ep13 = __VERIFIER_nondet_bool() [L89] ep21 = __VERIFIER_nondet_bool() [L90] ep23 = __VERIFIER_nondet_bool() [L91] ep31 = __VERIFIER_nondet_bool() [L92] ep32 = __VERIFIER_nondet_bool() [L93] id1 = __VERIFIER_nondet_char() [L94] r1 = __VERIFIER_nondet_char() [L95] st1 = __VERIFIER_nondet_char() [L96] nl1 = __VERIFIER_nondet_char() [L97] m1 = __VERIFIER_nondet_char() [L98] max1 = __VERIFIER_nondet_char() [L99] mode1 = __VERIFIER_nondet_bool() [L100] id2 = __VERIFIER_nondet_char() [L101] r2 = __VERIFIER_nondet_char() [L102] st2 = __VERIFIER_nondet_char() [L103] nl2 = __VERIFIER_nondet_char() [L104] m2 = __VERIFIER_nondet_char() [L105] max2 = __VERIFIER_nondet_char() [L106] mode2 = __VERIFIER_nondet_bool() [L107] id3 = __VERIFIER_nondet_char() [L108] r3 = __VERIFIER_nondet_char() [L109] st3 = __VERIFIER_nondet_char() [L110] nl3 = __VERIFIER_nondet_char() [L111] m3 = __VERIFIER_nondet_char() [L112] max3 = __VERIFIER_nondet_char() [L113] mode3 = __VERIFIER_nondet_bool() [L115] _Bool init__r121; [L116] _Bool init__r131; [L117] _Bool init__r211; [L118] _Bool init__r231; [L119] _Bool init__r311; [L120] _Bool init__r321; [L121] _Bool init__r122; [L122] int init__tmp; [L123] _Bool init__r132; [L124] int init__tmp___0; [L125] _Bool init__r212; [L126] int init__tmp___1; [L127] _Bool init__r232; [L128] int init__tmp___2; [L129] _Bool init__r312; [L130] int init__tmp___3; [L131] _Bool init__r322; [L132] int init__tmp___4; [L133] int init__tmp___5; [L134] init__r121 = ep12 [L135] init__r131 = ep13 [L136] init__r211 = ep21 [L137] init__r231 = ep23 [L138] init__r311 = ep31 [L139] init__r321 = ep32 [L140] COND FALSE !(!(init__r121 == 0)) [L2910] COND FALSE !(!(init__r131 == 0)) [L2926] init__tmp = 0 [L144] init__r122 = (_Bool)init__tmp [L145] COND FALSE !(!(init__r131 == 0)) [L2887] COND FALSE !(!(init__r121 == 0)) [L2903] init__tmp___0 = 0 [L149] init__r132 = (_Bool)init__tmp___0 [L150] COND FALSE !(!(init__r211 == 0)) [L2864] COND FALSE !(!(init__r231 == 0)) [L2880] init__tmp___1 = 0 [L154] init__r212 = (_Bool)init__tmp___1 [L155] COND FALSE !(!(init__r231 == 0)) [L2841] COND FALSE !(!(init__r211 == 0)) [L2857] init__tmp___2 = 0 [L159] init__r232 = (_Bool)init__tmp___2 [L160] COND FALSE !(!(init__r311 == 0)) [L2818] COND FALSE !(!(init__r321 == 0)) [L2834] init__tmp___3 = 0 [L164] init__r312 = (_Bool)init__tmp___3 [L165] COND FALSE !(!(init__r321 == 0)) [L2795] COND FALSE !(!(init__r311 == 0)) [L2811] init__tmp___4 = 0 [L169] init__r322 = (_Bool)init__tmp___4 [L170] COND TRUE ((int)id1) != ((int)id2) [L172] COND TRUE ((int)id1) != ((int)id3) [L174] COND TRUE ((int)id2) != ((int)id3) [L176] COND TRUE ((int)id1) >= 0 [L178] COND TRUE ((int)id2) >= 0 [L180] COND TRUE ((int)id3) >= 0 [L182] COND TRUE ((int)r1) == 0 [L184] COND TRUE ((int)r2) == 0 [L186] COND TRUE ((int)r3) == 0 [L188] COND TRUE ((int)max1) == ((int)id1) [L190] COND TRUE ((int)max2) == ((int)id2) [L192] COND TRUE ((int)max3) == ((int)id3) [L194] COND TRUE ((int)st1) == 0 [L196] COND TRUE ((int)st2) == 0 [L198] COND TRUE ((int)st3) == 0 [L200] COND TRUE ((int)nl1) == 0 [L202] COND TRUE ((int)nl2) == 0 [L204] COND TRUE ((int)nl3) == 0 [L206] COND TRUE ((int)mode1) == 0 [L208] COND TRUE ((int)mode2) == 0 [L210] COND TRUE ((int)mode3) == 0 [L212] init__tmp___5 = 1 [L213] __return_1708 = init__tmp___5 [L214] main__i2 = __return_1708 [L215] COND TRUE main__i2 != 0 [L217] p12_old = nomsg [L218] p12_new = nomsg [L219] p13_old = nomsg [L220] p13_new = nomsg [L221] p21_old = nomsg [L222] p21_new = nomsg [L223] p23_old = nomsg [L224] p23_new = nomsg [L225] p31_old = nomsg [L226] p31_new = nomsg [L227] p32_old = nomsg [L228] p32_new = nomsg [L229] main__i2 = 0 [L230] COND TRUE main__i2 < 6 [L233] COND FALSE !(!(mode1 == 0)) [L239] COND TRUE ((int)r1) < 2 [L241] COND FALSE !(!(ep12 == 0)) [L252] COND FALSE !(!(ep13 == 0)) [L263] mode1 = 1 [L265] COND FALSE !(!(mode2 == 0)) [L271] COND TRUE ((int)r2) < 2 [L273] COND FALSE !(!(ep21 == 0)) [L284] COND FALSE !(!(ep23 == 0)) [L295] mode2 = 1 [L297] COND FALSE !(!(mode3 == 0)) [L303] COND TRUE ((int)r3) < 2 [L305] COND FALSE !(!(ep31 == 0)) [L316] COND FALSE !(!(ep32 == 0)) [L327] mode3 = 1 [L328] p12_old = p12_new [L329] p12_new = nomsg [L330] p13_old = p13_new [L331] p13_new = nomsg [L332] p21_old = p21_new [L333] p21_new = nomsg [L334] p23_old = p23_new [L335] p23_new = nomsg [L336] p31_old = p31_new [L337] p31_new = nomsg [L338] p32_old = p32_new [L339] p32_new = nomsg [L341] int check__tmp; [L342] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L344] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L346] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L348] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L350] COND FALSE !(((int)r1) >= 2) [L356] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L358] COND TRUE ((int)r1) < 2 [L360] COND FALSE !(((int)r1) >= 2) [L366] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L368] COND TRUE ((int)r1) < 2 [L370] check__tmp = 1 [L371] __return_1836 = check__tmp [L372] main__c1 = __return_1836 [L374] _Bool __tmp_1; [L375] __tmp_1 = main__c1 [L376] _Bool assert__arg; [L377] assert__arg = __tmp_1 [L378] COND FALSE !(assert__arg == 0) [L384] int main____CPAchecker_TMP_0 = main__i2; [L385] main__i2 = main__i2 + 1 [L386] COND TRUE main__i2 < 6 [L389] COND TRUE !(mode1 == 0) [L391] r1 = (char)(((int)r1) + 1) [L392] COND FALSE !(!(ep21 == 0)) [L400] COND FALSE !(!(ep31 == 0)) [L408] COND FALSE !(((int)r1) == 2) [L414] mode1 = 0 [L416] COND TRUE !(mode2 == 0) [L418] r2 = (char)(((int)r2) + 1) [L419] COND FALSE !(!(ep12 == 0)) [L427] COND FALSE !(!(ep32 == 0)) [L435] COND FALSE !(((int)r2) == 2) [L441] mode2 = 0 [L443] COND TRUE !(mode3 == 0) [L445] r3 = (char)(((int)r3) + 1) [L446] COND FALSE !(!(ep13 == 0)) [L454] COND FALSE !(!(ep23 == 0)) [L462] COND FALSE !(((int)r3) == 2) [L468] mode3 = 0 [L469] p12_old = p12_new [L470] p12_new = nomsg [L471] p13_old = p13_new [L472] p13_new = nomsg [L473] p21_old = p21_new [L474] p21_new = nomsg [L475] p23_old = p23_new [L476] p23_new = nomsg [L477] p31_old = p31_new [L478] p31_new = nomsg [L479] p32_old = p32_new [L480] p32_new = nomsg [L482] int check__tmp; [L483] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L485] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L487] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L489] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L491] COND FALSE !(((int)r1) >= 2) [L497] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L499] COND TRUE ((int)r1) < 2 [L501] COND FALSE !(((int)r1) >= 2) [L507] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L509] COND TRUE ((int)r1) < 2 [L511] check__tmp = 1 [L512] __return_1954 = check__tmp [L513] main__c1 = __return_1954 [L515] _Bool __tmp_2; [L516] __tmp_2 = main__c1 [L517] _Bool assert__arg; [L518] assert__arg = __tmp_2 [L519] COND FALSE !(assert__arg == 0) [L525] int main____CPAchecker_TMP_0 = main__i2; [L526] main__i2 = main__i2 + 1 [L527] COND TRUE main__i2 < 6 [L530] COND FALSE !(!(mode1 == 0)) [L536] COND TRUE ((int)r1) < 2 [L538] COND FALSE !(!(ep12 == 0)) [L549] COND FALSE !(!(ep13 == 0)) [L560] mode1 = 1 [L562] COND FALSE !(!(mode2 == 0)) [L568] COND TRUE ((int)r2) < 2 [L570] COND FALSE !(!(ep21 == 0)) [L581] COND FALSE !(!(ep23 == 0)) [L592] mode2 = 1 [L594] COND FALSE !(!(mode3 == 0)) [L600] COND TRUE ((int)r3) < 2 [L602] COND FALSE !(!(ep31 == 0)) [L613] COND FALSE !(!(ep32 == 0)) [L624] mode3 = 1 [L625] p12_old = p12_new [L626] p12_new = nomsg [L627] p13_old = p13_new [L628] p13_new = nomsg [L629] p21_old = p21_new [L630] p21_new = nomsg [L631] p23_old = p23_new [L632] p23_new = nomsg [L633] p31_old = p31_new [L634] p31_new = nomsg [L635] p32_old = p32_new [L636] p32_new = nomsg [L638] int check__tmp; [L639] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L641] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L643] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L645] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L647] COND FALSE !(((int)r1) >= 2) [L653] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L655] COND TRUE ((int)r1) < 2 [L657] COND FALSE !(((int)r1) >= 2) [L663] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L665] COND TRUE ((int)r1) < 2 [L667] check__tmp = 1 [L668] __return_2075 = check__tmp [L669] main__c1 = __return_2075 [L671] _Bool __tmp_3; [L672] __tmp_3 = main__c1 [L673] _Bool assert__arg; [L674] assert__arg = __tmp_3 [L675] COND FALSE !(assert__arg == 0) [L681] int main____CPAchecker_TMP_0 = main__i2; [L682] main__i2 = main__i2 + 1 [L683] COND TRUE main__i2 < 6 [L686] COND TRUE !(mode1 == 0) [L688] r1 = (char)(((int)r1) + 1) [L689] COND FALSE !(!(ep21 == 0)) [L697] COND FALSE !(!(ep31 == 0)) [L705] COND TRUE ((int)r1) == 2 [L707] COND TRUE ((int)max1) == ((int)id1) [L709] st1 = 1 [L710] mode1 = 0 [L712] COND TRUE !(mode2 == 0) [L714] r2 = (char)(((int)r2) + 1) [L715] COND FALSE !(!(ep12 == 0)) [L723] COND FALSE !(!(ep32 == 0)) [L731] COND TRUE ((int)r2) == 2 [L733] COND TRUE ((int)max2) == ((int)id2) [L735] st2 = 1 [L736] mode2 = 0 [L738] COND TRUE !(mode3 == 0) [L740] r3 = (char)(((int)r3) + 1) [L741] COND FALSE !(!(ep13 == 0)) [L749] COND FALSE !(!(ep23 == 0)) [L757] COND TRUE ((int)r3) == 2 [L759] COND TRUE ((int)max3) == ((int)id3) [L761] st3 = 1 [L762] mode3 = 0 [L763] p12_old = p12_new [L764] p12_new = nomsg [L765] p13_old = p13_new [L766] p13_new = nomsg [L767] p21_old = p21_new [L768] p21_new = nomsg [L769] p23_old = p23_new [L770] p23_new = nomsg [L771] p31_old = p31_new [L772] p31_new = nomsg [L773] p32_old = p32_new [L774] p32_new = nomsg [L776] int check__tmp; [L777] COND FALSE !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1) [L783] check__tmp = 0 [L784] __return_2801 = check__tmp [L785] main__c1 = __return_2801 [L787] _Bool __tmp_4; [L788] __tmp_4 = main__c1 [L789] _Bool assert__arg; [L790] assert__arg = __tmp_4 [L791] COND TRUE assert__arg == 0 [L793] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 1132 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 148.9s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 113.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23073 SDtfs, 17251 SDslu, 13939 SDs, 0 SdLazy, 23660 SolverSat, 137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 61.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46015occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 24.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 61929 StatesRemovedByMinimization, 12 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...