./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label33.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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/Problem14_label33.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 aec3d6b735697765f122fd4969787ab3e5c22f1789977e4ce823d6b216b50af2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:10:47,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:10:47,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:10:47,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:10:47,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:10:47,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:10:47,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:10:47,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:10:47,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:10:47,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:10:47,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:10:47,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:10:47,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:10:47,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:10:47,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:10:47,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:10:47,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:10:47,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:10:47,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:10:47,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:10:47,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:10:47,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:10:47,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:10:47,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:10:47,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:10:47,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:10:47,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:10:47,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:10:47,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:10:47,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:10:47,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:10:47,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:10:47,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:10:47,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:10:47,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:10:47,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:10:47,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:10:47,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:10:47,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:10:47,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:10:47,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:10:47,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 11:10:47,850 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:10:47,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:10:47,851 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:10:47,851 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:10:47,852 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:10:47,852 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:10:47,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:10:47,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:10:47,853 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:10:47,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:10:47,853 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:10:47,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 11:10:47,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:10:47,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:10:47,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:10:47,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:10:47,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:10:47,855 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:10:47,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:10:47,855 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:10:47,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:10:47,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:10:47,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:10:47,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:10:47,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:10:47,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:10:47,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:10:47,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:10:47,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 11:10:47,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 11:10:47,858 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:10:47,858 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:10:47,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:10:47,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:10:47,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aec3d6b735697765f122fd4969787ab3e5c22f1789977e4ce823d6b216b50af2 [2021-12-21 11:10:48,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:10:48,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:10:48,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:10:48,069 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:10:48,069 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:10:48,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label33.c [2021-12-21 11:10:48,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e7ada26c/87b8a19af171434489348945819e0904/FLAG18a0931c9 [2021-12-21 11:10:48,538 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:10:48,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label33.c [2021-12-21 11:10:48,561 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e7ada26c/87b8a19af171434489348945819e0904/FLAG18a0931c9 [2021-12-21 11:10:48,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e7ada26c/87b8a19af171434489348945819e0904 [2021-12-21 11:10:48,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:10:48,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:10:48,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:10:48,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:10:48,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:10:48,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:10:48" (1/1) ... [2021-12-21 11:10:48,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20068eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:48, skipping insertion in model container [2021-12-21 11:10:48,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:10:48" (1/1) ... [2021-12-21 11:10:48,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:10:48,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:10:49,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label33.c[5937,5950] [2021-12-21 11:10:49,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:10:49,187 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:10:49,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label33.c[5937,5950] [2021-12-21 11:10:49,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:10:49,264 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:10:49,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49 WrapperNode [2021-12-21 11:10:49,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:10:49,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:10:49,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:10:49,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:10:49,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49" (1/1) ... [2021-12-21 11:10:49,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49" (1/1) ... [2021-12-21 11:10:49,331 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-12-21 11:10:49,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:10:49,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:10:49,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:10:49,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:10:49,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49" (1/1) ... [2021-12-21 11:10:49,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49" (1/1) ... [2021-12-21 11:10:49,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49" (1/1) ... [2021-12-21 11:10:49,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49" (1/1) ... [2021-12-21 11:10:49,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49" (1/1) ... [2021-12-21 11:10:49,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49" (1/1) ... [2021-12-21 11:10:49,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49" (1/1) ... [2021-12-21 11:10:49,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:10:49,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:10:49,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:10:49,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:10:49,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49" (1/1) ... [2021-12-21 11:10:49,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:10:49,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:10:49,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 11:10:49,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 11:10:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:10:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 11:10:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:10:49,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:10:49,543 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:10:49,544 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:10:50,315 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:10:50,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:10:50,329 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 11:10:50,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:10:50 BoogieIcfgContainer [2021-12-21 11:10:50,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:10:50,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:10:50,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:10:50,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:10:50,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:10:48" (1/3) ... [2021-12-21 11:10:50,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3678ae9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:10:50, skipping insertion in model container [2021-12-21 11:10:50,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:10:49" (2/3) ... [2021-12-21 11:10:50,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3678ae9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:10:50, skipping insertion in model container [2021-12-21 11:10:50,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:10:50" (3/3) ... [2021-12-21 11:10:50,339 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label33.c [2021-12-21 11:10:50,343 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:10:50,343 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:10:50,386 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:10:50,392 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 11:10:50,392 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:10:50,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:50,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 11:10:50,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:10:50,421 INFO L514 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] [2021-12-21 11:10:50,421 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:10:50,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:10:50,425 INFO L85 PathProgramCache]: Analyzing trace with hash -2074400678, now seen corresponding path program 1 times [2021-12-21 11:10:50,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:10:50,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303877179] [2021-12-21 11:10:50,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:50,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:10:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:50,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:10:50,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:10:50,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303877179] [2021-12-21 11:10:50,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303877179] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:10:50,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:10:50,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:10:50,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809514455] [2021-12-21 11:10:50,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:10:50,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:10:50,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:10:50,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:10:50,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 11:10:50,629 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:51,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:10:51,316 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-12-21 11:10:51,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:10:51,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-12-21 11:10:51,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:10:51,332 INFO L225 Difference]: With dead ends: 669 [2021-12-21 11:10:51,333 INFO L226 Difference]: Without dead ends: 360 [2021-12-21 11:10:51,342 INFO L932 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 [2021-12-21 11:10:51,345 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 152 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-21 11:10:51,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 94 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-21 11:10:51,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-12-21 11:10:51,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-12-21 11:10:51,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.5208913649025069) internal successors, (546), 359 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:51,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2021-12-21 11:10:51,401 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 58 [2021-12-21 11:10:51,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:10:51,402 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2021-12-21 11:10:51,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:51,402 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2021-12-21 11:10:51,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-21 11:10:51,405 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:10:51,405 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-21 11:10:51,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 11:10:51,406 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:10:51,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:10:51,406 INFO L85 PathProgramCache]: Analyzing trace with hash 729196247, now seen corresponding path program 1 times [2021-12-21 11:10:51,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:10:51,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366528932] [2021-12-21 11:10:51,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:51,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:10:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:10:51,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:10:51,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366528932] [2021-12-21 11:10:51,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366528932] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:10:51,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:10:51,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:10:51,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732519276] [2021-12-21 11:10:51,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:10:51,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:10:51,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:10:51,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:10:51,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 11:10:51,488 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:52,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:10:52,003 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2021-12-21 11:10:52,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:10:52,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-21 11:10:52,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:10:52,006 INFO L225 Difference]: With dead ends: 1074 [2021-12-21 11:10:52,006 INFO L226 Difference]: Without dead ends: 716 [2021-12-21 11:10:52,007 INFO L932 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 [2021-12-21 11:10:52,008 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 122 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-21 11:10:52,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 95 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-21 11:10:52,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-12-21 11:10:52,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-12-21 11:10:52,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:52,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2021-12-21 11:10:52,022 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 133 [2021-12-21 11:10:52,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:10:52,023 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2021-12-21 11:10:52,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:52,023 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2021-12-21 11:10:52,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-21 11:10:52,025 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:10:52,025 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-21 11:10:52,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 11:10:52,025 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:10:52,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:10:52,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1708937139, now seen corresponding path program 1 times [2021-12-21 11:10:52,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:10:52,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885723245] [2021-12-21 11:10:52,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:52,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:10:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:52,116 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:10:52,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:10:52,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885723245] [2021-12-21 11:10:52,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885723245] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:10:52,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:10:52,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 11:10:52,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194041938] [2021-12-21 11:10:52,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:10:52,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 11:10:52,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:10:52,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 11:10:52,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 11:10:52,119 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:52,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:10:52,900 INFO L93 Difference]: Finished difference Result 1964 states and 2570 transitions. [2021-12-21 11:10:52,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 11:10:52,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-12-21 11:10:52,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:10:52,904 INFO L225 Difference]: With dead ends: 1964 [2021-12-21 11:10:52,904 INFO L226 Difference]: Without dead ends: 1250 [2021-12-21 11:10:52,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:10:52,905 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 418 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-21 11:10:52,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 121 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-21 11:10:52,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-12-21 11:10:52,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-12-21 11:10:52,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.2361889511609288) internal successors, (1544), 1249 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:52,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2021-12-21 11:10:52,923 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 137 [2021-12-21 11:10:52,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:10:52,923 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2021-12-21 11:10:52,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:52,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2021-12-21 11:10:52,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-12-21 11:10:52,926 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:10:52,927 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:10:52,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 11:10:52,927 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:10:52,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:10:52,928 INFO L85 PathProgramCache]: Analyzing trace with hash -916192095, now seen corresponding path program 1 times [2021-12-21 11:10:52,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:10:52,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560740447] [2021-12-21 11:10:52,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:52,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:10:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-21 11:10:53,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:10:53,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560740447] [2021-12-21 11:10:53,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560740447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:10:53,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:10:53,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 11:10:53,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699386170] [2021-12-21 11:10:53,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:10:53,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 11:10:53,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:10:53,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 11:10:53,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-21 11:10:53,031 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:53,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:10:53,582 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2021-12-21 11:10:53,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 11:10:53,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2021-12-21 11:10:53,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:10:53,587 INFO L225 Difference]: With dead ends: 2705 [2021-12-21 11:10:53,587 INFO L226 Difference]: Without dead ends: 1606 [2021-12-21 11:10:53,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-21 11:10:53,590 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 118 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-21 11:10:53,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 119 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-21 11:10:53,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-12-21 11:10:53,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2021-12-21 11:10:53,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1221183800623054) internal successors, (1801), 1605 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2021-12-21 11:10:53,612 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 217 [2021-12-21 11:10:53,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:10:53,612 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2021-12-21 11:10:53,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:53,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2021-12-21 11:10:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-12-21 11:10:53,615 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:10:53,616 INFO L514 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, 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, 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] [2021-12-21 11:10:53,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 11:10:53,616 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:10:53,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:10:53,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1467709680, now seen corresponding path program 1 times [2021-12-21 11:10:53,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:10:53,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633488031] [2021-12-21 11:10:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:53,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:10:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:53,771 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 215 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-21 11:10:53,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:10:53,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633488031] [2021-12-21 11:10:53,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633488031] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 11:10:53,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595389754] [2021-12-21 11:10:53,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:53,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 11:10:53,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:10:53,773 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 11:10:53,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 11:10:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:53,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 11:10:53,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:10:54,314 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-12-21 11:10:54,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:10:54,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595389754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:10:54,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 11:10:54,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-21 11:10:54,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034895187] [2021-12-21 11:10:54,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:10:54,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:10:54,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:10:54,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:10:54,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:10:54,317 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:54,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:10:54,722 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2021-12-21 11:10:54,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:10:54,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2021-12-21 11:10:54,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:10:54,728 INFO L225 Difference]: With dead ends: 3388 [2021-12-21 11:10:54,730 INFO L226 Difference]: Without dead ends: 1962 [2021-12-21 11:10:54,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:10:54,738 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 127 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-21 11:10:54,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 254 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-21 11:10:54,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-12-21 11:10:54,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2021-12-21 11:10:54,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1320754716981132) internal successors, (2220), 1961 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:54,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2220 transitions. [2021-12-21 11:10:54,768 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2220 transitions. Word has length 344 [2021-12-21 11:10:54,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:10:54,774 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2220 transitions. [2021-12-21 11:10:54,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:54,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2220 transitions. [2021-12-21 11:10:54,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-12-21 11:10:54,779 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:10:54,779 INFO L514 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:10:54,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 11:10:54,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 11:10:54,997 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:10:54,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:10:54,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1261449754, now seen corresponding path program 1 times [2021-12-21 11:10:54,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:10:54,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135284023] [2021-12-21 11:10:54,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:54,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:10:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-21 11:10:55,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:10:55,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135284023] [2021-12-21 11:10:55,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135284023] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:10:55,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:10:55,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 11:10:55,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029669453] [2021-12-21 11:10:55,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:10:55,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:10:55,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:10:55,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:10:55,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 11:10:55,177 INFO L87 Difference]: Start difference. First operand 1962 states and 2220 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:55,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:10:55,549 INFO L93 Difference]: Finished difference Result 4100 states and 4689 transitions. [2021-12-21 11:10:55,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:10:55,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 348 [2021-12-21 11:10:55,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:10:55,556 INFO L225 Difference]: With dead ends: 4100 [2021-12-21 11:10:55,556 INFO L226 Difference]: Without dead ends: 2318 [2021-12-21 11:10:55,558 INFO L932 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 [2021-12-21 11:10:55,561 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 101 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 11:10:55,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 58 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 11:10:55,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-12-21 11:10:55,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2021-12-21 11:10:55,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.127751402675874) internal successors, (2613), 2317 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2613 transitions. [2021-12-21 11:10:55,590 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2613 transitions. Word has length 348 [2021-12-21 11:10:55,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:10:55,590 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2613 transitions. [2021-12-21 11:10:55,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:55,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2613 transitions. [2021-12-21 11:10:55,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-12-21 11:10:55,594 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:10:55,594 INFO L514 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:10:55,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 11:10:55,594 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:10:55,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:10:55,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1867847128, now seen corresponding path program 1 times [2021-12-21 11:10:55,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:10:55,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172259328] [2021-12-21 11:10:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:55,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:10:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:55,730 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 222 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-12-21 11:10:55,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:10:55,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172259328] [2021-12-21 11:10:55,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172259328] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 11:10:55,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958296262] [2021-12-21 11:10:55,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:55,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 11:10:55,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:10:55,732 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 11:10:55,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 11:10:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:55,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 11:10:55,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:10:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2021-12-21 11:10:56,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:10:56,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958296262] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:10:56,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 11:10:56,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-12-21 11:10:56,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188785246] [2021-12-21 11:10:56,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:10:56,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:10:56,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:10:56,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:10:56,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:10:56,338 INFO L87 Difference]: Start difference. First operand 2318 states and 2613 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:56,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:10:56,729 INFO L93 Difference]: Finished difference Result 4990 states and 5718 transitions. [2021-12-21 11:10:56,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:10:56,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 351 [2021-12-21 11:10:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:10:56,737 INFO L225 Difference]: With dead ends: 4990 [2021-12-21 11:10:56,737 INFO L226 Difference]: Without dead ends: 2852 [2021-12-21 11:10:56,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:10:56,740 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-21 11:10:56,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-21 11:10:56,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-12-21 11:10:56,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2674. [2021-12-21 11:10:56,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.1126075570520015) internal successors, (2974), 2673 states have internal predecessors, (2974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:56,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2974 transitions. [2021-12-21 11:10:56,778 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2974 transitions. Word has length 351 [2021-12-21 11:10:56,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:10:56,779 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2974 transitions. [2021-12-21 11:10:56,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:56,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2974 transitions. [2021-12-21 11:10:56,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-12-21 11:10:56,783 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:10:56,783 INFO L514 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, 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, 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, 1, 1, 1, 1, 1] [2021-12-21 11:10:56,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 11:10:56,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-21 11:10:56,999 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:10:56,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:10:56,999 INFO L85 PathProgramCache]: Analyzing trace with hash -814875796, now seen corresponding path program 1 times [2021-12-21 11:10:57,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:10:57,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558361947] [2021-12-21 11:10:57,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:57,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:10:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:57,154 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-12-21 11:10:57,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:10:57,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558361947] [2021-12-21 11:10:57,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558361947] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 11:10:57,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130739072] [2021-12-21 11:10:57,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:57,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 11:10:57,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:10:57,156 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 11:10:57,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 11:10:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:57,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 11:10:57,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:10:57,629 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-21 11:10:57,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:10:57,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130739072] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:10:57,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 11:10:57,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-21 11:10:57,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600932280] [2021-12-21 11:10:57,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:10:57,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:10:57,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:10:57,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:10:57,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:10:57,632 INFO L87 Difference]: Start difference. First operand 2674 states and 2974 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:58,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:10:58,045 INFO L93 Difference]: Finished difference Result 5702 states and 6438 transitions. [2021-12-21 11:10:58,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:10:58,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 375 [2021-12-21 11:10:58,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:10:58,053 INFO L225 Difference]: With dead ends: 5702 [2021-12-21 11:10:58,054 INFO L226 Difference]: Without dead ends: 3208 [2021-12-21 11:10:58,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:10:58,056 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 129 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-21 11:10:58,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 67 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-21 11:10:58,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-12-21 11:10:58,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2021-12-21 11:10:58,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.1164503682918274) internal successors, (3183), 2851 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:58,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3183 transitions. [2021-12-21 11:10:58,098 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3183 transitions. Word has length 375 [2021-12-21 11:10:58,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:10:58,099 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3183 transitions. [2021-12-21 11:10:58,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:58,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3183 transitions. [2021-12-21 11:10:58,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-12-21 11:10:58,101 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:10:58,101 INFO L514 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:10:58,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 11:10:58,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 11:10:58,321 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:10:58,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:10:58,321 INFO L85 PathProgramCache]: Analyzing trace with hash 132656657, now seen corresponding path program 1 times [2021-12-21 11:10:58,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:10:58,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446646143] [2021-12-21 11:10:58,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:58,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:10:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-21 11:10:58,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:10:58,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446646143] [2021-12-21 11:10:58,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446646143] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:10:58,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:10:58,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 11:10:58,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272169263] [2021-12-21 11:10:58,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:10:58,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:10:58,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:10:58,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:10:58,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 11:10:58,402 INFO L87 Difference]: Start difference. First operand 2852 states and 3183 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:58,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:10:58,796 INFO L93 Difference]: Finished difference Result 3922 states and 4448 transitions. [2021-12-21 11:10:58,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:10:58,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 382 [2021-12-21 11:10:58,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:10:58,805 INFO L225 Difference]: With dead ends: 3922 [2021-12-21 11:10:58,805 INFO L226 Difference]: Without dead ends: 3920 [2021-12-21 11:10:58,806 INFO L932 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 [2021-12-21 11:10:58,806 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 127 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-21 11:10:58,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 18 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-21 11:10:58,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-12-21 11:10:58,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3208. [2021-12-21 11:10:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.13844714686623) internal successors, (3651), 3207 states have internal predecessors, (3651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:58,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3651 transitions. [2021-12-21 11:10:58,846 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3651 transitions. Word has length 382 [2021-12-21 11:10:58,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:10:58,847 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3651 transitions. [2021-12-21 11:10:58,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:58,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3651 transitions. [2021-12-21 11:10:58,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2021-12-21 11:10:58,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:10:58,870 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:10:58,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 11:10:58,871 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:10:58,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:10:58,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1823307718, now seen corresponding path program 1 times [2021-12-21 11:10:58,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:10:58,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799374553] [2021-12-21 11:10:58,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:58,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:10:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 432 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-12-21 11:10:58,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:10:58,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799374553] [2021-12-21 11:10:58,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799374553] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:10:58,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:10:58,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 11:10:58,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843549955] [2021-12-21 11:10:58,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:10:58,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 11:10:58,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:10:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 11:10:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-21 11:10:58,969 INFO L87 Difference]: Start difference. First operand 3208 states and 3651 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:59,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:10:59,415 INFO L93 Difference]: Finished difference Result 6443 states and 7346 transitions. [2021-12-21 11:10:59,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 11:10:59,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 428 [2021-12-21 11:10:59,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:10:59,424 INFO L225 Difference]: With dead ends: 6443 [2021-12-21 11:10:59,424 INFO L226 Difference]: Without dead ends: 3386 [2021-12-21 11:10:59,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-21 11:10:59,428 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-21 11:10:59,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 17 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-21 11:10:59,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-12-21 11:10:59,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2021-12-21 11:10:59,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0994699095728095) internal successors, (3526), 3207 states have internal predecessors, (3526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3526 transitions. [2021-12-21 11:10:59,466 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3526 transitions. Word has length 428 [2021-12-21 11:10:59,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:10:59,467 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3526 transitions. [2021-12-21 11:10:59,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:10:59,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3526 transitions. [2021-12-21 11:10:59,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-12-21 11:10:59,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:10:59,470 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1] [2021-12-21 11:10:59,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 11:10:59,470 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:10:59,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:10:59,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1357227771, now seen corresponding path program 2 times [2021-12-21 11:10:59,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:10:59,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628074323] [2021-12-21 11:10:59,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:10:59,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:10:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:10:59,629 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 473 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-21 11:10:59,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:10:59,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628074323] [2021-12-21 11:10:59,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628074323] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 11:10:59,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364397068] [2021-12-21 11:10:59,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 11:10:59,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 11:10:59,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:10:59,632 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 11:10:59,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 11:10:59,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 11:10:59,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 11:10:59,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 11:10:59,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:11:00,444 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-21 11:11:00,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:11:00,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364397068] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:11:00,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 11:11:00,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-21 11:11:00,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318436513] [2021-12-21 11:11:00,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:11:00,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 11:11:00,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:11:00,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 11:11:00,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-21 11:11:00,447 INFO L87 Difference]: Start difference. First operand 3208 states and 3526 transitions. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:00,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:11:00,950 INFO L93 Difference]: Finished difference Result 7482 states and 8211 transitions. [2021-12-21 11:11:00,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 11:11:00,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 454 [2021-12-21 11:11:00,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:11:00,961 INFO L225 Difference]: With dead ends: 7482 [2021-12-21 11:11:00,961 INFO L226 Difference]: Without dead ends: 4454 [2021-12-21 11:11:00,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 452 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-21 11:11:00,966 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 265 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-21 11:11:00,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 14 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-21 11:11:00,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2021-12-21 11:11:01,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3208. [2021-12-21 11:11:01,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0813844714686622) internal successors, (3468), 3207 states have internal predecessors, (3468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:01,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3468 transitions. [2021-12-21 11:11:01,029 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3468 transitions. Word has length 454 [2021-12-21 11:11:01,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:11:01,030 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3468 transitions. [2021-12-21 11:11:01,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3468 transitions. [2021-12-21 11:11:01,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-12-21 11:11:01,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:11:01,032 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:11:01,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-21 11:11:01,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 11:11:01,252 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:11:01,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:11:01,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1022483894, now seen corresponding path program 1 times [2021-12-21 11:11:01,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:11:01,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10103863] [2021-12-21 11:11:01,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:11:01,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:11:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:11:01,415 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-21 11:11:01,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:11:01,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10103863] [2021-12-21 11:11:01,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10103863] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:11:01,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:11:01,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 11:11:01,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573950538] [2021-12-21 11:11:01,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:11:01,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:11:01,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:11:01,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:11:01,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 11:11:01,418 INFO L87 Difference]: Start difference. First operand 3208 states and 3468 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:01,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:11:01,760 INFO L93 Difference]: Finished difference Result 6948 states and 7543 transitions. [2021-12-21 11:11:01,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:11:01,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 461 [2021-12-21 11:11:01,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:11:01,772 INFO L225 Difference]: With dead ends: 6948 [2021-12-21 11:11:01,775 INFO L226 Difference]: Without dead ends: 3920 [2021-12-21 11:11:01,797 INFO L932 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 [2021-12-21 11:11:01,798 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 103 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 11:11:01,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 227 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 11:11:01,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-12-21 11:11:01,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2021-12-21 11:11:01,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0751136059877038) internal successors, (4022), 3741 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:01,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4022 transitions. [2021-12-21 11:11:01,846 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4022 transitions. Word has length 461 [2021-12-21 11:11:01,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:11:01,847 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4022 transitions. [2021-12-21 11:11:01,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:01,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4022 transitions. [2021-12-21 11:11:01,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2021-12-21 11:11:01,850 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:11:01,850 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:11:01,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-21 11:11:01,851 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:11:01,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:11:01,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1164746627, now seen corresponding path program 1 times [2021-12-21 11:11:01,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:11:01,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159451698] [2021-12-21 11:11:01,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:11:01,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:11:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:11:02,006 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 473 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-21 11:11:02,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:11:02,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159451698] [2021-12-21 11:11:02,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159451698] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 11:11:02,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983358096] [2021-12-21 11:11:02,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:11:02,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 11:11:02,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:11:02,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 11:11:02,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-21 11:11:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:11:02,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 11:11:02,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:11:02,801 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-12-21 11:11:02,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:11:02,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983358096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:11:02,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 11:11:02,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-21 11:11:02,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156761317] [2021-12-21 11:11:02,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:11:02,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:11:02,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:11:02,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:11:02,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-21 11:11:02,803 INFO L87 Difference]: Start difference. First operand 3742 states and 4022 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:03,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:11:03,154 INFO L93 Difference]: Finished difference Result 8016 states and 8637 transitions. [2021-12-21 11:11:03,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:11:03,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 506 [2021-12-21 11:11:03,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:11:03,165 INFO L225 Difference]: With dead ends: 8016 [2021-12-21 11:11:03,166 INFO L226 Difference]: Without dead ends: 4632 [2021-12-21 11:11:03,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-21 11:11:03,169 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 11:11:03,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 50 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 11:11:03,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-12-21 11:11:03,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4276. [2021-12-21 11:11:03,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.0734502923976608) internal successors, (4589), 4275 states have internal predecessors, (4589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:03,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4589 transitions. [2021-12-21 11:11:03,235 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4589 transitions. Word has length 506 [2021-12-21 11:11:03,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:11:03,236 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 4589 transitions. [2021-12-21 11:11:03,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:03,236 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4589 transitions. [2021-12-21 11:11:03,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2021-12-21 11:11:03,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:11:03,240 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:11:03,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-21 11:11:03,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-21 11:11:03,458 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:11:03,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:11:03,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1924015763, now seen corresponding path program 1 times [2021-12-21 11:11:03,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:11:03,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467623103] [2021-12-21 11:11:03,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:11:03,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:11:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:11:03,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 734 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-12-21 11:11:03,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:11:03,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467623103] [2021-12-21 11:11:03,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467623103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:11:03,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:11:03,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 11:11:03,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354668974] [2021-12-21 11:11:03,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:11:03,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:11:03,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:11:03,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:11:03,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 11:11:03,585 INFO L87 Difference]: Start difference. First operand 4276 states and 4589 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:03,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:11:03,964 INFO L93 Difference]: Finished difference Result 8372 states and 8997 transitions. [2021-12-21 11:11:03,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:11:03,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 523 [2021-12-21 11:11:03,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:11:03,971 INFO L225 Difference]: With dead ends: 8372 [2021-12-21 11:11:03,971 INFO L226 Difference]: Without dead ends: 4276 [2021-12-21 11:11:03,975 INFO L932 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 [2021-12-21 11:11:03,975 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 11:11:03,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 11:11:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-12-21 11:11:04,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3742. [2021-12-21 11:11:04,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0793905372894947) internal successors, (4038), 3741 states have internal predecessors, (4038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:04,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4038 transitions. [2021-12-21 11:11:04,021 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4038 transitions. Word has length 523 [2021-12-21 11:11:04,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:11:04,021 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4038 transitions. [2021-12-21 11:11:04,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:04,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4038 transitions. [2021-12-21 11:11:04,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2021-12-21 11:11:04,025 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:11:04,025 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:11:04,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-21 11:11:04,025 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:11:04,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:11:04,026 INFO L85 PathProgramCache]: Analyzing trace with hash -642086955, now seen corresponding path program 1 times [2021-12-21 11:11:04,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:11:04,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862294444] [2021-12-21 11:11:04,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:11:04,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:11:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:11:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1228 backedges. 858 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-12-21 11:11:04,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:11:04,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862294444] [2021-12-21 11:11:04,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862294444] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:11:04,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:11:04,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 11:11:04,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504569534] [2021-12-21 11:11:04,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:11:04,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:11:04,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:11:04,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:11:04,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 11:11:04,155 INFO L87 Difference]: Start difference. First operand 3742 states and 4038 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:04,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:11:04,518 INFO L93 Difference]: Finished difference Result 8372 states and 9091 transitions. [2021-12-21 11:11:04,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:11:04,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 571 [2021-12-21 11:11:04,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:11:04,524 INFO L225 Difference]: With dead ends: 8372 [2021-12-21 11:11:04,525 INFO L226 Difference]: Without dead ends: 4810 [2021-12-21 11:11:04,528 INFO L932 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 [2021-12-21 11:11:04,528 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 11:11:04,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 52 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 11:11:04,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-12-21 11:11:04,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2021-12-21 11:11:04,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0761072988147224) internal successors, (5175), 4809 states have internal predecessors, (5175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:04,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5175 transitions. [2021-12-21 11:11:04,627 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5175 transitions. Word has length 571 [2021-12-21 11:11:04,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:11:04,627 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5175 transitions. [2021-12-21 11:11:04,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:04,628 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5175 transitions. [2021-12-21 11:11:04,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2021-12-21 11:11:04,633 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:11:04,633 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 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] [2021-12-21 11:11:04,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-21 11:11:04,634 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:11:04,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:11:04,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1353804037, now seen corresponding path program 1 times [2021-12-21 11:11:04,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:11:04,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477877288] [2021-12-21 11:11:04,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:11:04,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:11:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:11:04,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2152 backedges. 1575 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-12-21 11:11:04,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:11:04,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477877288] [2021-12-21 11:11:04,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477877288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:11:04,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:11:04,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 11:11:04,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046116541] [2021-12-21 11:11:04,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:11:04,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:11:04,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:11:04,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:11:04,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 11:11:04,774 INFO L87 Difference]: Start difference. First operand 4810 states and 5175 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:05,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:11:05,157 INFO L93 Difference]: Finished difference Result 9440 states and 10169 transitions. [2021-12-21 11:11:05,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:11:05,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 736 [2021-12-21 11:11:05,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:11:05,163 INFO L225 Difference]: With dead ends: 9440 [2021-12-21 11:11:05,163 INFO L226 Difference]: Without dead ends: 4810 [2021-12-21 11:11:05,167 INFO L932 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 [2021-12-21 11:11:05,167 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 102 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-21 11:11:05,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 243 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-21 11:11:05,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-12-21 11:11:05,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4632. [2021-12-21 11:11:05,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.068667674368387) internal successors, (4949), 4631 states have internal predecessors, (4949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:05,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4949 transitions. [2021-12-21 11:11:05,214 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4949 transitions. Word has length 736 [2021-12-21 11:11:05,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:11:05,214 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4949 transitions. [2021-12-21 11:11:05,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4949 transitions. [2021-12-21 11:11:05,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2021-12-21 11:11:05,220 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:11:05,220 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:11:05,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-21 11:11:05,221 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:11:05,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:11:05,221 INFO L85 PathProgramCache]: Analyzing trace with hash 195631814, now seen corresponding path program 1 times [2021-12-21 11:11:05,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:11:05,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289610339] [2021-12-21 11:11:05,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:11:05,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:11:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:11:05,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 1334 proven. 155 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-12-21 11:11:05,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:11:05,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289610339] [2021-12-21 11:11:05,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289610339] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 11:11:05,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067814538] [2021-12-21 11:11:05,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:11:05,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 11:11:05,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:11:05,456 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 11:11:05,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-21 11:11:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:11:05,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 11:11:05,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:11:06,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2021-12-21 11:11:06,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:11:06,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067814538] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:11:06,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 11:11:06,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-21 11:11:06,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050778788] [2021-12-21 11:11:06,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:11:06,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:11:06,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:11:06,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:11:06,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:11:06,367 INFO L87 Difference]: Start difference. First operand 4632 states and 4949 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:11:06,612 INFO L93 Difference]: Finished difference Result 6414 states and 6831 transitions. [2021-12-21 11:11:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:11:06,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 794 [2021-12-21 11:11:06,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:11:06,621 INFO L225 Difference]: With dead ends: 6414 [2021-12-21 11:11:06,621 INFO L226 Difference]: Without dead ends: 6412 [2021-12-21 11:11:06,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:11:06,623 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 144 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 11:11:06,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 17 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 11:11:06,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-12-21 11:11:06,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 4632. [2021-12-21 11:11:06,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.068667674368387) internal successors, (4949), 4631 states have internal predecessors, (4949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:06,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4949 transitions. [2021-12-21 11:11:06,665 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4949 transitions. Word has length 794 [2021-12-21 11:11:06,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:11:06,666 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4949 transitions. [2021-12-21 11:11:06,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:06,666 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4949 transitions. [2021-12-21 11:11:06,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2021-12-21 11:11:06,671 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:11:06,672 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:11:06,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-21 11:11:06,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-21 11:11:06,889 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:11:06,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:11:06,889 INFO L85 PathProgramCache]: Analyzing trace with hash -2000356807, now seen corresponding path program 1 times [2021-12-21 11:11:06,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:11:06,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238884947] [2021-12-21 11:11:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:11:06,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:11:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:11:07,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 1424 proven. 155 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-12-21 11:11:07,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:11:07,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238884947] [2021-12-21 11:11:07,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238884947] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 11:11:07,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395238167] [2021-12-21 11:11:07,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:11:07,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 11:11:07,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:11:07,078 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 11:11:07,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-21 11:11:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:11:07,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 11:11:07,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:11:08,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 1614 trivial. 0 not checked. [2021-12-21 11:11:08,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:11:08,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395238167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:11:08,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 11:11:08,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-21 11:11:08,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66087552] [2021-12-21 11:11:08,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:11:08,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 11:11:08,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:11:08,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 11:11:08,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:11:08,019 INFO L87 Difference]: Start difference. First operand 4632 states and 4949 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:08,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:11:08,375 INFO L93 Difference]: Finished difference Result 10506 states and 11224 transitions. [2021-12-21 11:11:08,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 11:11:08,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 812 [2021-12-21 11:11:08,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:11:08,376 INFO L225 Difference]: With dead ends: 10506 [2021-12-21 11:11:08,376 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 11:11:08,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:11:08,382 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 123 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 11:11:08,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 238 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 11:11:08,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 11:11:08,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 11:11:08,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:08,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 11:11:08,383 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 812 [2021-12-21 11:11:08,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:11:08,383 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 11:11:08,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:11:08,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 11:11:08,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 11:11:08,385 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:11:08,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-21 11:11:08,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 11:11:08,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-12-21 11:11:09,724 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-12-21 11:11:09,725 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-12-21 11:11:09,726 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-12-21 11:11:09,727 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,728 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-12-21 11:11:09,729 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-12-21 11:11:09,730 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-12-21 11:11:09,731 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-12-21 11:11:09,732 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-12-21 11:11:09,733 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-12-21 11:11:09,734 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-12-21 11:11:09,734 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,734 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,734 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-12-21 11:11:09,734 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-21 11:11:09,734 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-12-21 11:11:09,734 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-12-21 11:11:09,734 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-12-21 11:11:09,734 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-12-21 11:11:09,735 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-12-21 11:11:09,735 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,735 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,735 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (<= (+ ~a12~0 43) 0)) (.cse2 (= ~a24~0 1)) (.cse1 (<= ~a15~0 5))) (or (and .cse0 (<= ~a21~0 7) .cse1) (and (<= 7 ~a15~0) .cse2) (and (<= ~a12~0 11) .cse2 (not .cse0)) (and .cse2 (< 80 ~a12~0)) (and (<= ~a21~0 9) .cse2) (and .cse2 .cse1))) [2021-12-21 11:11:09,735 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-12-21 11:11:09,747 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-12-21 11:11:09,747 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-21 11:11:09,747 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-12-21 11:11:09,747 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-12-21 11:11:09,748 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-12-21 11:11:09,748 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-12-21 11:11:09,748 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-12-21 11:11:09,748 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,748 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,748 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-12-21 11:11:09,748 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-12-21 11:11:09,748 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-12-21 11:11:09,748 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-21 11:11:09,748 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-12-21 11:11:09,749 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-12-21 11:11:09,749 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-12-21 11:11:09,749 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-12-21 11:11:09,749 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,749 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,749 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-21 11:11:09,749 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-12-21 11:11:09,749 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-12-21 11:11:09,749 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-21 11:11:09,750 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-12-21 11:11:09,750 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-12-21 11:11:09,750 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-12-21 11:11:09,750 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,750 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,750 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-12-21 11:11:09,750 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,750 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-12-21 11:11:09,750 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (<= (+ ~a12~0 43) 0)) (.cse2 (= ~a24~0 1)) (.cse1 (<= ~a15~0 5))) (or (and .cse0 (<= ~a21~0 7) .cse1) (and (<= 7 ~a15~0) .cse2) (and (<= ~a12~0 11) .cse2 (not .cse0)) (and .cse2 (< 80 ~a12~0)) (and (<= ~a21~0 9) .cse2) (and .cse2 .cse1))) [2021-12-21 11:11:09,751 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-12-21 11:11:09,751 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-12-21 11:11:09,751 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-21 11:11:09,751 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-12-21 11:11:09,751 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-12-21 11:11:09,751 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-12-21 11:11:09,751 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-12-21 11:11:09,751 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-12-21 11:11:09,751 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-12-21 11:11:09,751 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,752 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,752 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-12-21 11:11:09,752 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-12-21 11:11:09,752 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-12-21 11:11:09,752 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-12-21 11:11:09,752 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-12-21 11:11:09,754 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:11:09,756 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:11:09,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:11:09 BoogieIcfgContainer [2021-12-21 11:11:09,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:11:09,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:11:09,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:11:09,783 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:11:09,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:10:50" (3/4) ... [2021-12-21 11:11:09,785 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 11:11:09,797 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-21 11:11:09,798 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-21 11:11:09,799 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 11:11:09,800 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 11:11:09,863 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 11:11:09,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:11:09,863 INFO L158 Benchmark]: Toolchain (without parser) took 20966.32ms. Allocated memory was 121.6MB in the beginning and 486.5MB in the end (delta: 364.9MB). Free memory was 91.0MB in the beginning and 303.4MB in the end (delta: -212.4MB). Peak memory consumption was 154.1MB. Max. memory is 16.1GB. [2021-12-21 11:11:09,864 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:11:09,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.17ms. Allocated memory is still 121.6MB. Free memory was 90.7MB in the beginning and 77.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-21 11:11:09,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.75ms. Allocated memory is still 121.6MB. Free memory was 77.1MB in the beginning and 67.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 11:11:09,864 INFO L158 Benchmark]: Boogie Preprocessor took 82.81ms. Allocated memory is still 121.6MB. Free memory was 67.0MB in the beginning and 92.3MB in the end (delta: -25.2MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-12-21 11:11:09,865 INFO L158 Benchmark]: RCFGBuilder took 915.84ms. Allocated memory is still 121.6MB. Free memory was 91.6MB in the beginning and 61.2MB in the end (delta: 30.3MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2021-12-21 11:11:09,865 INFO L158 Benchmark]: TraceAbstraction took 19449.17ms. Allocated memory was 121.6MB in the beginning and 486.5MB in the end (delta: 364.9MB). Free memory was 60.6MB in the beginning and 321.4MB in the end (delta: -260.8MB). Peak memory consumption was 274.4MB. Max. memory is 16.1GB. [2021-12-21 11:11:09,865 INFO L158 Benchmark]: Witness Printer took 80.83ms. Allocated memory is still 486.5MB. Free memory was 321.4MB in the beginning and 303.4MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-21 11:11:09,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.17ms. Allocated memory is still 121.6MB. Free memory was 90.7MB in the beginning and 77.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.75ms. Allocated memory is still 121.6MB. Free memory was 77.1MB in the beginning and 67.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.81ms. Allocated memory is still 121.6MB. Free memory was 67.0MB in the beginning and 92.3MB in the end (delta: -25.2MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * RCFGBuilder took 915.84ms. Allocated memory is still 121.6MB. Free memory was 91.6MB in the beginning and 61.2MB in the end (delta: 30.3MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. * TraceAbstraction took 19449.17ms. Allocated memory was 121.6MB in the beginning and 486.5MB in the end (delta: 364.9MB). Free memory was 60.6MB in the beginning and 321.4MB in the end (delta: -260.8MB). Peak memory consumption was 274.4MB. Max. memory is 16.1GB. * Witness Printer took 80.83ms. Allocated memory is still 486.5MB. Free memory was 321.4MB in the beginning and 303.4MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 188]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.4s, OverallIterations: 18, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2447 SdHoareTripleChecker+Valid, 7.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2447 mSDsluCounter, 1976 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 1162 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9042 IncrementalHoareTripleChecker+Invalid, 10204 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1162 mSolverCounterUnsat, 1880 mSDtfsCounter, 9042 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3690 GetRequests, 3647 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4810occurred in iteration=15, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 18 MinimizatonAttempts, 5696 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 77 NumberOfFragments, 109 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2176 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 8456 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 11266 NumberOfCodeBlocks, 11266 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 11241 ConstructedInterpolants, 0 QuantifiedInterpolants, 36972 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4713 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 25 InterpolantComputations, 18 PerfectInterpolantSequences, 19436/20565 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((a12 + 43 <= 0 && a21 <= 7) && a15 <= 5) || (7 <= a15 && a24 == 1)) || ((a12 <= 11 && a24 == 1) && !(a12 + 43 <= 0))) || (a24 == 1 && 80 < a12)) || (a21 <= 9 && a24 == 1)) || (a24 == 1 && a15 <= 5) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((a12 + 43 <= 0 && a21 <= 7) && a15 <= 5) || (7 <= a15 && a24 == 1)) || ((a12 <= 11 && a24 == 1) && !(a12 + 43 <= 0))) || (a24 == 1 && 80 < a12)) || (a21 <= 9 && a24 == 1)) || (a24 == 1 && a15 <= 5) RESULT: Ultimate proved your program to be correct! [2021-12-21 11:11:09,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE