./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem02_label06.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a937101f176a572541659fee94ca93a8b43bef4a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 19:45:28,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 19:45:28,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 19:45:28,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 19:45:28,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 19:45:28,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 19:45:28,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 19:45:28,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 19:45:28,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 19:45:28,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 19:45:28,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 19:45:28,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 19:45:28,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 19:45:28,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 19:45:28,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 19:45:28,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 19:45:28,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 19:45:28,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 19:45:28,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 19:45:28,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 19:45:28,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 19:45:28,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 19:45:28,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 19:45:28,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 19:45:28,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 19:45:28,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 19:45:28,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 19:45:28,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 19:45:28,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 19:45:28,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 19:45:28,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 19:45:28,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 19:45:28,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 19:45:28,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 19:45:28,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 19:45:28,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 19:45:28,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 19:45:28,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 19:45:28,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 19:45:28,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 19:45:28,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 19:45:28,916 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 19:45:28,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 19:45:28,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 19:45:28,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 19:45:28,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 19:45:28,983 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 19:45:28,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 19:45:28,984 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 19:45:28,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 19:45:28,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 19:45:28,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 19:45:28,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 19:45:28,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 19:45:28,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 19:45:28,987 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 19:45:28,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 19:45:28,988 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 19:45:28,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 19:45:28,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 19:45:28,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 19:45:28,989 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 19:45:28,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 19:45:28,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 19:45:28,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 19:45:28,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 19:45:28,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 19:45:28,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 19:45:28,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 19:45:28,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 19:45:28,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 19:45:28,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a937101f176a572541659fee94ca93a8b43bef4a [2020-10-25 19:45:29,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 19:45:29,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 19:45:29,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 19:45:29,437 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 19:45:29,439 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 19:45:29,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label06.c [2020-10-25 19:45:29,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915f18e26/ce93ad238e0141afb3c3a2abc7f5a9db/FLAGb83bd5f71 [2020-10-25 19:45:30,349 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 19:45:30,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label06.c [2020-10-25 19:45:30,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915f18e26/ce93ad238e0141afb3c3a2abc7f5a9db/FLAGb83bd5f71 [2020-10-25 19:45:30,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915f18e26/ce93ad238e0141afb3c3a2abc7f5a9db [2020-10-25 19:45:30,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 19:45:30,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 19:45:30,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 19:45:30,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 19:45:30,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 19:45:30,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:45:30" (1/1) ... [2020-10-25 19:45:30,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5229a854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:30, skipping insertion in model container [2020-10-25 19:45:30,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:45:30" (1/1) ... [2020-10-25 19:45:30,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 19:45:30,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 19:45:31,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:45:31,231 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 19:45:31,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:45:31,369 INFO L208 MainTranslator]: Completed translation [2020-10-25 19:45:31,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31 WrapperNode [2020-10-25 19:45:31,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 19:45:31,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 19:45:31,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 19:45:31,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 19:45:31,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31" (1/1) ... [2020-10-25 19:45:31,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31" (1/1) ... [2020-10-25 19:45:31,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 19:45:31,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 19:45:31,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 19:45:31,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 19:45:31,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31" (1/1) ... [2020-10-25 19:45:31,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31" (1/1) ... [2020-10-25 19:45:31,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31" (1/1) ... [2020-10-25 19:45:31,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31" (1/1) ... [2020-10-25 19:45:31,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31" (1/1) ... [2020-10-25 19:45:31,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31" (1/1) ... [2020-10-25 19:45:31,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31" (1/1) ... [2020-10-25 19:45:31,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 19:45:31,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 19:45:31,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 19:45:31,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 19:45:31,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31" (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 [2020-10-25 19:45:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 19:45:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 19:45:31,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 19:45:31,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 19:45:33,128 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 19:45:33,129 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 19:45:33,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:45:33 BoogieIcfgContainer [2020-10-25 19:45:33,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 19:45:33,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 19:45:33,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 19:45:33,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 19:45:33,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 07:45:30" (1/3) ... [2020-10-25 19:45:33,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a2a1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:45:33, skipping insertion in model container [2020-10-25 19:45:33,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:31" (2/3) ... [2020-10-25 19:45:33,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a2a1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:45:33, skipping insertion in model container [2020-10-25 19:45:33,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:45:33" (3/3) ... [2020-10-25 19:45:33,149 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label06.c [2020-10-25 19:45:33,161 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 19:45:33,167 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 19:45:33,181 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 19:45:33,211 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 19:45:33,211 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 19:45:33,211 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 19:45:33,212 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 19:45:33,212 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 19:45:33,212 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 19:45:33,212 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 19:45:33,212 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 19:45:33,246 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-10-25 19:45:33,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-25 19:45:33,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:33,263 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] [2020-10-25 19:45:33,263 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:33,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:33,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1439061899, now seen corresponding path program 1 times [2020-10-25 19:45:33,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:33,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770048506] [2020-10-25 19:45:33,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:33,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:33,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770048506] [2020-10-25 19:45:33,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:33,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:45:33,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833421305] [2020-10-25 19:45:33,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:33,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:33,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:33,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:33,955 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-10-25 19:45:35,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:35,020 INFO L93 Difference]: Finished difference Result 597 states and 1031 transitions. [2020-10-25 19:45:35,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:35,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-10-25 19:45:35,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:35,041 INFO L225 Difference]: With dead ends: 597 [2020-10-25 19:45:35,041 INFO L226 Difference]: Without dead ends: 305 [2020-10-25 19:45:35,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:35,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-10-25 19:45:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2020-10-25 19:45:35,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-10-25 19:45:35,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 464 transitions. [2020-10-25 19:45:35,156 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 464 transitions. Word has length 140 [2020-10-25 19:45:35,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:35,161 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 464 transitions. [2020-10-25 19:45:35,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:35,162 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 464 transitions. [2020-10-25 19:45:35,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-25 19:45:35,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:35,167 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:35,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 19:45:35,168 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:35,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:35,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1659328717, now seen corresponding path program 1 times [2020-10-25 19:45:35,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:35,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871449176] [2020-10-25 19:45:35,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:35,303 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:35,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871449176] [2020-10-25 19:45:35,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:35,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:45:35,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45770801] [2020-10-25 19:45:35,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:35,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:35,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:35,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:35,309 INFO L87 Difference]: Start difference. First operand 305 states and 464 transitions. Second operand 3 states. [2020-10-25 19:45:35,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:35,667 INFO L93 Difference]: Finished difference Result 599 states and 913 transitions. [2020-10-25 19:45:35,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:35,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-10-25 19:45:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:35,671 INFO L225 Difference]: With dead ends: 599 [2020-10-25 19:45:35,672 INFO L226 Difference]: Without dead ends: 296 [2020-10-25 19:45:35,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:35,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-25 19:45:35,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2020-10-25 19:45:35,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-10-25 19:45:35,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 421 transitions. [2020-10-25 19:45:35,699 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 421 transitions. Word has length 151 [2020-10-25 19:45:35,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:35,700 INFO L481 AbstractCegarLoop]: Abstraction has 296 states and 421 transitions. [2020-10-25 19:45:35,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:35,700 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 421 transitions. [2020-10-25 19:45:35,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-25 19:45:35,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:35,704 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:35,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 19:45:35,704 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:35,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:35,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1594990984, now seen corresponding path program 1 times [2020-10-25 19:45:35,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:35,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355545563] [2020-10-25 19:45:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:35,884 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:35,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355545563] [2020-10-25 19:45:35,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:35,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:45:35,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150997005] [2020-10-25 19:45:35,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:35,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:35,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:35,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:35,897 INFO L87 Difference]: Start difference. First operand 296 states and 421 transitions. Second operand 3 states. [2020-10-25 19:45:36,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:36,662 INFO L93 Difference]: Finished difference Result 872 states and 1244 transitions. [2020-10-25 19:45:36,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:36,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-10-25 19:45:36,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:36,666 INFO L225 Difference]: With dead ends: 872 [2020-10-25 19:45:36,666 INFO L226 Difference]: Without dead ends: 578 [2020-10-25 19:45:36,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:36,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-10-25 19:45:36,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 438. [2020-10-25 19:45:36,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-10-25 19:45:36,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 573 transitions. [2020-10-25 19:45:36,688 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 573 transitions. Word has length 158 [2020-10-25 19:45:36,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:36,688 INFO L481 AbstractCegarLoop]: Abstraction has 438 states and 573 transitions. [2020-10-25 19:45:36,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:36,688 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 573 transitions. [2020-10-25 19:45:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-25 19:45:36,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:36,692 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:36,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 19:45:36,692 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:36,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:36,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1840922299, now seen corresponding path program 1 times [2020-10-25 19:45:36,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:36,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649484813] [2020-10-25 19:45:36,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:36,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649484813] [2020-10-25 19:45:36,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:36,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:45:36,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326795532] [2020-10-25 19:45:36,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:36,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:36,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:36,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:36,876 INFO L87 Difference]: Start difference. First operand 438 states and 573 transitions. Second operand 3 states. [2020-10-25 19:45:37,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:37,678 INFO L93 Difference]: Finished difference Result 1017 states and 1348 transitions. [2020-10-25 19:45:37,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:37,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-10-25 19:45:37,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:37,682 INFO L225 Difference]: With dead ends: 1017 [2020-10-25 19:45:37,683 INFO L226 Difference]: Without dead ends: 581 [2020-10-25 19:45:37,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:37,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-10-25 19:45:37,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 579. [2020-10-25 19:45:37,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-10-25 19:45:37,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 754 transitions. [2020-10-25 19:45:37,732 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 754 transitions. Word has length 163 [2020-10-25 19:45:37,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:37,735 INFO L481 AbstractCegarLoop]: Abstraction has 579 states and 754 transitions. [2020-10-25 19:45:37,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:37,735 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 754 transitions. [2020-10-25 19:45:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-25 19:45:37,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:37,740 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:37,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 19:45:37,741 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:37,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:37,742 INFO L82 PathProgramCache]: Analyzing trace with hash -736311237, now seen corresponding path program 1 times [2020-10-25 19:45:37,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:37,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113981329] [2020-10-25 19:45:37,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:38,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113981329] [2020-10-25 19:45:38,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913050219] [2020-10-25 19:45:38,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:45:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:38,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:45:38,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:45:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-25 19:45:38,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:45:38,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-25 19:45:38,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175608456] [2020-10-25 19:45:38,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:38,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:38,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:38,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:45:38,457 INFO L87 Difference]: Start difference. First operand 579 states and 754 transitions. Second operand 3 states. [2020-10-25 19:45:39,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:39,254 INFO L93 Difference]: Finished difference Result 1585 states and 2049 transitions. [2020-10-25 19:45:39,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:39,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-10-25 19:45:39,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:39,261 INFO L225 Difference]: With dead ends: 1585 [2020-10-25 19:45:39,261 INFO L226 Difference]: Without dead ends: 1008 [2020-10-25 19:45:39,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:45:39,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2020-10-25 19:45:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 867. [2020-10-25 19:45:39,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-25 19:45:39,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1074 transitions. [2020-10-25 19:45:39,299 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1074 transitions. Word has length 167 [2020-10-25 19:45:39,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:39,300 INFO L481 AbstractCegarLoop]: Abstraction has 867 states and 1074 transitions. [2020-10-25 19:45:39,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:39,301 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1074 transitions. [2020-10-25 19:45:39,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-25 19:45:39,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:39,305 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:39,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:45:39,519 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:39,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:39,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1060993103, now seen corresponding path program 1 times [2020-10-25 19:45:39,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:39,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858978728] [2020-10-25 19:45:39,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-25 19:45:39,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858978728] [2020-10-25 19:45:39,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:39,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:45:39,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785053423] [2020-10-25 19:45:39,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:39,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:39,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:39,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:39,620 INFO L87 Difference]: Start difference. First operand 867 states and 1074 transitions. Second operand 3 states. [2020-10-25 19:45:40,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:40,265 INFO L93 Difference]: Finished difference Result 1726 states and 2137 transitions. [2020-10-25 19:45:40,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:40,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-10-25 19:45:40,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:40,276 INFO L225 Difference]: With dead ends: 1726 [2020-10-25 19:45:40,276 INFO L226 Difference]: Without dead ends: 861 [2020-10-25 19:45:40,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:40,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-10-25 19:45:40,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2020-10-25 19:45:40,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-10-25 19:45:40,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 985 transitions. [2020-10-25 19:45:40,307 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 985 transitions. Word has length 171 [2020-10-25 19:45:40,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:40,308 INFO L481 AbstractCegarLoop]: Abstraction has 861 states and 985 transitions. [2020-10-25 19:45:40,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:40,309 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 985 transitions. [2020-10-25 19:45:40,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-25 19:45:40,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:40,314 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:40,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 19:45:40,323 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:40,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:40,324 INFO L82 PathProgramCache]: Analyzing trace with hash 534947636, now seen corresponding path program 1 times [2020-10-25 19:45:40,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:40,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73036375] [2020-10-25 19:45:40,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:40,518 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-25 19:45:40,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73036375] [2020-10-25 19:45:40,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:40,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:45:40,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195794226] [2020-10-25 19:45:40,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:40,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:40,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:40,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:40,521 INFO L87 Difference]: Start difference. First operand 861 states and 985 transitions. Second operand 3 states. [2020-10-25 19:45:41,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:41,181 INFO L93 Difference]: Finished difference Result 2280 states and 2588 transitions. [2020-10-25 19:45:41,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:41,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-10-25 19:45:41,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:41,186 INFO L225 Difference]: With dead ends: 2280 [2020-10-25 19:45:41,187 INFO L226 Difference]: Without dead ends: 858 [2020-10-25 19:45:41,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-10-25 19:45:41,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2020-10-25 19:45:41,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2020-10-25 19:45:41,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 933 transitions. [2020-10-25 19:45:41,206 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 933 transitions. Word has length 233 [2020-10-25 19:45:41,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:41,207 INFO L481 AbstractCegarLoop]: Abstraction has 858 states and 933 transitions. [2020-10-25 19:45:41,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:41,207 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 933 transitions. [2020-10-25 19:45:41,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-25 19:45:41,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:41,212 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:41,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 19:45:41,212 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:41,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:41,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1559837765, now seen corresponding path program 1 times [2020-10-25 19:45:41,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:41,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395274942] [2020-10-25 19:45:41,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-25 19:45:41,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395274942] [2020-10-25 19:45:41,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742756625] [2020-10-25 19:45:41,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:45:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:41,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:45:41,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:45:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-25 19:45:41,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:45:41,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-25 19:45:41,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700525678] [2020-10-25 19:45:41,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:41,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:41,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:41,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:45:41,589 INFO L87 Difference]: Start difference. First operand 858 states and 933 transitions. Second operand 3 states. [2020-10-25 19:45:42,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:42,199 INFO L93 Difference]: Finished difference Result 2279 states and 2476 transitions. [2020-10-25 19:45:42,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:42,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2020-10-25 19:45:42,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:42,206 INFO L225 Difference]: With dead ends: 2279 [2020-10-25 19:45:42,207 INFO L226 Difference]: Without dead ends: 1423 [2020-10-25 19:45:42,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:45:42,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2020-10-25 19:45:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1278. [2020-10-25 19:45:42,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-10-25 19:45:42,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1387 transitions. [2020-10-25 19:45:42,236 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1387 transitions. Word has length 243 [2020-10-25 19:45:42,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:42,237 INFO L481 AbstractCegarLoop]: Abstraction has 1278 states and 1387 transitions. [2020-10-25 19:45:42,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:42,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1387 transitions. [2020-10-25 19:45:42,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-25 19:45:42,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:42,243 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:42,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:45:42,458 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:42,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:42,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1418039631, now seen corresponding path program 1 times [2020-10-25 19:45:42,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:42,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467567206] [2020-10-25 19:45:42,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:42,664 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 80 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-25 19:45:42,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467567206] [2020-10-25 19:45:42,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082818048] [2020-10-25 19:45:42,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:45:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:42,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:45:42,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:45:42,888 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-25 19:45:42,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:45:42,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-25 19:45:42,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868274606] [2020-10-25 19:45:42,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:42,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:42,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:42,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:45:42,891 INFO L87 Difference]: Start difference. First operand 1278 states and 1387 transitions. Second operand 3 states. [2020-10-25 19:45:43,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:43,547 INFO L93 Difference]: Finished difference Result 2414 states and 2627 transitions. [2020-10-25 19:45:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:43,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2020-10-25 19:45:43,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:43,557 INFO L225 Difference]: With dead ends: 2414 [2020-10-25 19:45:43,557 INFO L226 Difference]: Without dead ends: 1278 [2020-10-25 19:45:43,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:45:43,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2020-10-25 19:45:43,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1278. [2020-10-25 19:45:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-10-25 19:45:43,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1364 transitions. [2020-10-25 19:45:43,588 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1364 transitions. Word has length 247 [2020-10-25 19:45:43,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:43,589 INFO L481 AbstractCegarLoop]: Abstraction has 1278 states and 1364 transitions. [2020-10-25 19:45:43,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:43,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1364 transitions. [2020-10-25 19:45:43,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-25 19:45:43,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:43,596 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:43,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:45:43,811 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:43,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:43,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1340152621, now seen corresponding path program 1 times [2020-10-25 19:45:43,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:43,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76999009] [2020-10-25 19:45:43,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:43,967 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-25 19:45:43,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76999009] [2020-10-25 19:45:43,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:43,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:45:43,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175438762] [2020-10-25 19:45:43,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:43,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:43,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:43,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:43,972 INFO L87 Difference]: Start difference. First operand 1278 states and 1364 transitions. Second operand 3 states. [2020-10-25 19:45:44,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:44,662 INFO L93 Difference]: Finished difference Result 2695 states and 2896 transitions. [2020-10-25 19:45:44,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:44,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2020-10-25 19:45:44,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:44,671 INFO L225 Difference]: With dead ends: 2695 [2020-10-25 19:45:44,671 INFO L226 Difference]: Without dead ends: 1559 [2020-10-25 19:45:44,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:44,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-10-25 19:45:44,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1278. [2020-10-25 19:45:44,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-10-25 19:45:44,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1361 transitions. [2020-10-25 19:45:44,701 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1361 transitions. Word has length 268 [2020-10-25 19:45:44,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:44,702 INFO L481 AbstractCegarLoop]: Abstraction has 1278 states and 1361 transitions. [2020-10-25 19:45:44,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:44,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1361 transitions. [2020-10-25 19:45:44,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-25 19:45:44,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:44,706 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:44,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 19:45:44,706 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:44,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:44,707 INFO L82 PathProgramCache]: Analyzing trace with hash -342046692, now seen corresponding path program 1 times [2020-10-25 19:45:44,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:44,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288577614] [2020-10-25 19:45:44,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:44,962 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:44,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288577614] [2020-10-25 19:45:44,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:44,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 19:45:44,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764006847] [2020-10-25 19:45:44,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 19:45:44,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:44,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 19:45:44,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:45:44,966 INFO L87 Difference]: Start difference. First operand 1278 states and 1361 transitions. Second operand 4 states. [2020-10-25 19:45:45,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:45,978 INFO L93 Difference]: Finished difference Result 2974 states and 3160 transitions. [2020-10-25 19:45:45,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 19:45:45,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 291 [2020-10-25 19:45:45,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:45,986 INFO L225 Difference]: With dead ends: 2974 [2020-10-25 19:45:45,986 INFO L226 Difference]: Without dead ends: 1558 [2020-10-25 19:45:45,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:45:45,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2020-10-25 19:45:46,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1416. [2020-10-25 19:45:46,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1416 states. [2020-10-25 19:45:46,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1483 transitions. [2020-10-25 19:45:46,016 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1483 transitions. Word has length 291 [2020-10-25 19:45:46,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:46,016 INFO L481 AbstractCegarLoop]: Abstraction has 1416 states and 1483 transitions. [2020-10-25 19:45:46,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 19:45:46,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1483 transitions. [2020-10-25 19:45:46,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-10-25 19:45:46,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:46,021 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:46,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 19:45:46,021 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:46,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:46,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1359711507, now seen corresponding path program 1 times [2020-10-25 19:45:46,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:46,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844673515] [2020-10-25 19:45:46,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:46,348 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-25 19:45:46,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844673515] [2020-10-25 19:45:46,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:46,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 19:45:46,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557378985] [2020-10-25 19:45:46,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 19:45:46,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:46,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 19:45:46,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:45:46,351 INFO L87 Difference]: Start difference. First operand 1416 states and 1483 transitions. Second operand 5 states. [2020-10-25 19:45:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:47,628 INFO L93 Difference]: Finished difference Result 2858 states and 3002 transitions. [2020-10-25 19:45:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 19:45:47,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 301 [2020-10-25 19:45:47,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:47,635 INFO L225 Difference]: With dead ends: 2858 [2020-10-25 19:45:47,635 INFO L226 Difference]: Without dead ends: 1295 [2020-10-25 19:45:47,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-25 19:45:47,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2020-10-25 19:45:47,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1134. [2020-10-25 19:45:47,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1134 states. [2020-10-25 19:45:47,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1161 transitions. [2020-10-25 19:45:47,661 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1161 transitions. Word has length 301 [2020-10-25 19:45:47,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:47,662 INFO L481 AbstractCegarLoop]: Abstraction has 1134 states and 1161 transitions. [2020-10-25 19:45:47,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 19:45:47,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1161 transitions. [2020-10-25 19:45:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-25 19:45:47,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:47,666 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:47,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-25 19:45:47,666 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:47,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:47,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1849293059, now seen corresponding path program 1 times [2020-10-25 19:45:47,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:47,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832704504] [2020-10-25 19:45:47,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:47,966 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 277 proven. 106 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-25 19:45:47,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832704504] [2020-10-25 19:45:47,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041379450] [2020-10-25 19:45:47,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:45:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:48,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 19:45:48,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:45:48,246 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-25 19:45:48,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:45:48,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 19:45:48,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437468795] [2020-10-25 19:45:48,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:48,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:48,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:48,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:45:48,249 INFO L87 Difference]: Start difference. First operand 1134 states and 1161 transitions. Second operand 3 states. [2020-10-25 19:45:48,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:48,686 INFO L93 Difference]: Finished difference Result 1557 states and 1597 transitions. [2020-10-25 19:45:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:48,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 343 [2020-10-25 19:45:48,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:48,687 INFO L225 Difference]: With dead ends: 1557 [2020-10-25 19:45:48,687 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 19:45:48,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:45:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 19:45:48,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 19:45:48,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 19:45:48,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 19:45:48,690 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 343 [2020-10-25 19:45:48,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:48,690 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 19:45:48,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:48,690 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 19:45:48,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 19:45:48,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:45:48,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 19:45:49,300 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-10-25 19:45:49,599 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-10-25 19:45:49,604 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-25 19:45:49,604 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-25 19:45:49,605 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-25 19:45:49,606 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-25 19:45:49,607 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-25 19:45:49,607 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,607 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,607 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,607 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-25 19:45:49,608 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-25 19:45:49,608 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-25 19:45:49,609 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-25 19:45:49,609 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-25 19:45:49,609 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,609 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,609 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,609 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-25 19:45:49,609 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-25 19:45:49,610 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-25 19:45:49,610 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-25 19:45:49,610 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-25 19:45:49,610 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-25 19:45:49,610 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-25 19:45:49,610 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-25 19:45:49,611 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,611 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,611 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,611 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-25 19:45:49,611 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-25 19:45:49,611 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-25 19:45:49,611 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-25 19:45:49,611 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-25 19:45:49,612 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-25 19:45:49,612 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-25 19:45:49,612 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-25 19:45:49,612 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,612 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,612 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,613 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-25 19:45:49,613 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-25 19:45:49,613 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-25 19:45:49,613 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-25 19:45:49,613 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-25 19:45:49,613 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-25 19:45:49,614 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-25 19:45:49,614 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-25 19:45:49,614 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-25 19:45:49,614 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,614 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,614 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,615 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-25 19:45:49,615 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-25 19:45:49,615 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-25 19:45:49,615 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-25 19:45:49,615 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-25 19:45:49,615 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-25 19:45:49,616 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 19:45:49,616 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,616 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,616 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,616 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-25 19:45:49,616 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-25 19:45:49,616 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-25 19:45:49,617 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-25 19:45:49,617 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-25 19:45:49,617 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-25 19:45:49,617 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-25 19:45:49,617 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-25 19:45:49,617 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,618 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,618 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,618 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-25 19:45:49,618 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-25 19:45:49,618 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-25 19:45:49,618 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-25 19:45:49,619 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-25 19:45:49,619 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,619 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,619 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,619 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-25 19:45:49,619 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 19:45:49,619 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 19:45:49,620 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-25 19:45:49,620 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-25 19:45:49,620 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-25 19:45:49,620 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-25 19:45:49,620 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-25 19:45:49,620 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-25 19:45:49,621 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-25 19:45:49,621 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-25 19:45:49,621 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-25 19:45:49,621 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-25 19:45:49,621 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,621 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,622 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-25 19:45:49,622 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-25 19:45:49,622 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-25 19:45:49,622 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-25 19:45:49,622 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-25 19:45:49,622 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-25 19:45:49,623 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-25 19:45:49,623 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-25 19:45:49,623 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-25 19:45:49,623 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 19:45:49,624 INFO L270 CegarLoopResult]: At program point L599(lines 31 600) the Hoare annotation is: (let ((.cse4 (<= 9 ~a28~0)) (.cse6 (= ~a21~0 1)) (.cse7 (= ~a17~0 8)) (.cse11 (<= ~a25~0 0)) (.cse0 (<= ~a19~0 0)) (.cse10 (<= ~a28~0 7)) (.cse2 (= ~a11~0 1)) (.cse5 (= ~a19~0 1)) (.cse8 (<= 8 ~a17~0)) (.cse9 (= ~a25~0 1)) (.cse1 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7 .cse3) (and .cse5 .cse6 .cse8 .cse9 .cse1) (and .cse5 .cse9 .cse10 .cse1) (and .cse0 .cse4 .cse9 .cse1 .cse3) (and .cse5 .cse10 .cse1 .cse2) (and .cse0 (<= ~a28~0 8) .cse1 .cse11) (and .cse5 .cse6 .cse7 .cse10 .cse11) (and .cse0 .cse10 .cse1) (and .cse5 .cse8 .cse2 .cse1 .cse3) (and .cse5 .cse8 .cse9 .cse1 .cse3))) [2020-10-25 19:45:49,624 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,624 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,624 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-25 19:45:49,625 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-25 19:45:49,625 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-25 19:45:49,625 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-25 19:45:49,625 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-25 19:45:49,625 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-25 19:45:49,625 INFO L277 CegarLoopResult]: At program point L602(lines 602 619) the Hoare annotation is: true [2020-10-25 19:45:49,626 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,626 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,626 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-25 19:45:49,626 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-25 19:45:49,626 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-25 19:45:49,626 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-25 19:45:49,626 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-25 19:45:49,627 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-25 19:45:49,627 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-25 19:45:49,627 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-25 19:45:49,627 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-25 19:45:49,627 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,627 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,627 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-25 19:45:49,628 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-25 19:45:49,628 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-25 19:45:49,628 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-25 19:45:49,628 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-25 19:45:49,628 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-25 19:45:49,629 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse4 (<= 9 ~a28~0)) (.cse6 (= ~a21~0 1)) (.cse7 (= ~a17~0 8)) (.cse11 (<= ~a25~0 0)) (.cse0 (<= ~a19~0 0)) (.cse10 (<= ~a28~0 7)) (.cse2 (= ~a11~0 1)) (.cse5 (= ~a19~0 1)) (.cse8 (<= 8 ~a17~0)) (.cse9 (= ~a25~0 1)) (.cse1 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7 .cse3) (and .cse5 .cse6 .cse8 .cse9 .cse1) (and .cse5 .cse9 .cse10 .cse1) (and .cse0 .cse4 .cse9 .cse1 .cse3) (and .cse5 .cse10 .cse1 .cse2) (and .cse0 (<= ~a28~0 8) .cse1 .cse11) (and .cse5 .cse6 .cse7 .cse10 .cse11) (and .cse0 .cse10 .cse1) (and .cse5 .cse8 .cse2 .cse1 .cse3) (and .cse5 .cse8 .cse9 .cse1 .cse3))) [2020-10-25 19:45:49,629 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,629 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,629 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-25 19:45:49,630 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-25 19:45:49,630 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-25 19:45:49,630 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-25 19:45:49,630 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-25 19:45:49,630 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,630 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,631 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-25 19:45:49,631 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-25 19:45:49,631 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-25 19:45:49,631 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-25 19:45:49,631 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-25 19:45:49,631 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-25 19:45:49,631 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-25 19:45:49,632 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-25 19:45:49,632 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-25 19:45:49,632 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,632 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,632 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-25 19:45:49,632 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,632 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 19:45:49,633 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-25 19:45:49,633 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-25 19:45:49,633 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-25 19:45:49,633 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-25 19:45:49,633 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-25 19:45:49,633 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-25 19:45:49,633 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,634 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,634 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,634 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-25 19:45:49,634 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-25 19:45:49,634 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-25 19:45:49,634 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-25 19:45:49,634 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-25 19:45:49,635 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,635 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,635 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,635 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-25 19:45:49,635 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-25 19:45:49,635 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-25 19:45:49,635 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-25 19:45:49,636 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-25 19:45:49,636 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-25 19:45:49,636 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 19:45:49,636 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,636 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,636 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,637 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-25 19:45:49,637 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-25 19:45:49,637 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-25 19:45:49,637 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-25 19:45:49,637 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-25 19:45:49,637 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-25 19:45:49,637 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-25 19:45:49,638 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-25 19:45:49,638 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,638 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,638 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,638 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-25 19:45:49,638 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-25 19:45:49,638 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-25 19:45:49,639 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-25 19:45:49,639 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-25 19:45:49,639 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,639 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,639 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:45:49,639 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-25 19:45:49,639 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-25 19:45:49,640 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-25 19:45:49,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 07:45:49 BoogieIcfgContainer [2020-10-25 19:45:49,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 19:45:49,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 19:45:49,669 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 19:45:49,669 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 19:45:49,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:45:33" (3/4) ... [2020-10-25 19:45:49,674 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 19:45:49,721 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 19:45:49,722 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 19:45:49,724 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:45:49,725 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:45:49,913 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 19:45:49,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 19:45:49,916 INFO L168 Benchmark]: Toolchain (without parser) took 19319.10 ms. Allocated memory was 41.9 MB in the beginning and 335.5 MB in the end (delta: 293.6 MB). Free memory was 18.4 MB in the beginning and 232.4 MB in the end (delta: -214.0 MB). Peak memory consumption was 81.5 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:49,918 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 41.9 MB. Free memory is still 24.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 19:45:49,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.87 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.7 MB in the beginning and 22.1 MB in the end (delta: -4.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:49,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.56 ms. Allocated memory is still 50.3 MB. Free memory was 21.9 MB in the beginning and 30.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:49,920 INFO L168 Benchmark]: Boogie Preprocessor took 61.34 ms. Allocated memory is still 50.3 MB. Free memory was 30.1 MB in the beginning and 25.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:49,920 INFO L168 Benchmark]: RCFGBuilder took 1613.93 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.6 MB in the beginning and 25.0 MB in the end (delta: 626.6 kB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:49,921 INFO L168 Benchmark]: TraceAbstraction took 16527.51 ms. Allocated memory was 60.8 MB in the beginning and 335.5 MB in the end (delta: 274.7 MB). Free memory was 24.4 MB in the beginning and 248.1 MB in the end (delta: -223.7 MB). Peak memory consumption was 187.7 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:49,921 INFO L168 Benchmark]: Witness Printer took 246.28 ms. Allocated memory is still 335.5 MB. Free memory was 248.1 MB in the beginning and 232.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:49,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 41.9 MB. Free memory is still 24.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 758.87 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.7 MB in the beginning and 22.1 MB in the end (delta: -4.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.56 ms. Allocated memory is still 50.3 MB. Free memory was 21.9 MB in the beginning and 30.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.34 ms. Allocated memory is still 50.3 MB. Free memory was 30.1 MB in the beginning and 25.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1613.93 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.6 MB in the beginning and 25.0 MB in the end (delta: 626.6 kB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16527.51 ms. Allocated memory was 60.8 MB in the beginning and 335.5 MB in the end (delta: 274.7 MB). Free memory was 24.4 MB in the beginning and 248.1 MB in the end (delta: -223.7 MB). Peak memory consumption was 187.7 MB. Max. memory is 16.1 GB. * Witness Printer took 246.28 ms. Allocated memory is still 335.5 MB. Free memory was 248.1 MB in the beginning and 232.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((((((((((((a19 <= 0 && a17 <= 8) && a11 == 1) && a28 <= 10) || ((((9 <= a28 && a19 == 1) && a21 == 1) && a17 == 8) && a28 <= 10)) || ((((a19 == 1 && a21 == 1) && 8 <= a17) && a25 == 1) && a17 <= 8)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || ((((a19 <= 0 && 9 <= a28) && a25 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a28 <= 7) && a17 <= 8) && a11 == 1)) || (((a19 <= 0 && a28 <= 8) && a17 <= 8) && a25 <= 0)) || ((((a19 == 1 && a21 == 1) && a17 == 8) && a28 <= 7) && a25 <= 0)) || ((a19 <= 0 && a28 <= 7) && a17 <= 8)) || ((((a19 == 1 && 8 <= a17) && a11 == 1) && a17 <= 8) && a28 <= 10)) || ((((a19 == 1 && 8 <= a17) && a25 == 1) && a17 <= 8) && a28 <= 10) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((((((((((((a19 <= 0 && a17 <= 8) && a11 == 1) && a28 <= 10) || ((((9 <= a28 && a19 == 1) && a21 == 1) && a17 == 8) && a28 <= 10)) || ((((a19 == 1 && a21 == 1) && 8 <= a17) && a25 == 1) && a17 <= 8)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || ((((a19 <= 0 && 9 <= a28) && a25 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a28 <= 7) && a17 <= 8) && a11 == 1)) || (((a19 <= 0 && a28 <= 8) && a17 <= 8) && a25 <= 0)) || ((((a19 == 1 && a21 == 1) && a17 == 8) && a28 <= 7) && a25 <= 0)) || ((a19 <= 0 && a28 <= 7) && a17 <= 8)) || ((((a19 == 1 && 8 <= a17) && a11 == 1) && a17 <= 8) && a28 <= 10)) || ((((a19 == 1 && 8 <= a17) && a25 == 1) && a17 <= 8) && a28 <= 10) - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.6s, OverallIterations: 13, TraceHistogramMax: 5, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1414 SDtfs, 1844 SDslu, 173 SDs, 0 SdLazy, 4965 SolverSat, 705 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1038 GetRequests, 1010 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1416occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1012 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 319 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1574 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 3876 NumberOfCodeBlocks, 3876 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3859 ConstructedInterpolants, 0 QuantifiedInterpolants, 2345977 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1659 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 2265/2399 InterpolantCoveringCapability, 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 correct! Received shutdown request...