./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label31.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/Problem01_label31.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 e4dd87ffa8279e5be73819f1eecf23f4704317559faef100e8eb60d719eb066b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 10:24:46,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 10:24:46,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 10:24:46,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 10:24:46,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 10:24:46,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 10:24:46,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 10:24:46,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 10:24:46,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 10:24:46,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 10:24:46,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 10:24:46,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 10:24:46,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 10:24:46,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 10:24:46,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 10:24:46,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 10:24:46,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 10:24:46,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 10:24:46,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 10:24:46,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 10:24:46,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 10:24:46,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 10:24:46,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 10:24:46,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 10:24:46,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 10:24:46,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 10:24:46,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 10:24:46,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 10:24:46,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 10:24:46,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 10:24:46,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 10:24:46,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 10:24:46,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 10:24:46,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 10:24:46,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 10:24:46,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 10:24:46,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 10:24:46,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 10:24:46,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 10:24:46,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 10:24:46,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 10:24:46,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 10:24:46,147 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 10:24:46,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 10:24:46,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 10:24:46,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 10:24:46,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 10:24:46,149 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 10:24:46,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 10:24:46,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 10:24:46,149 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 10:24:46,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 10:24:46,150 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 10:24:46,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 10:24:46,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 10:24:46,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 10:24:46,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 10:24:46,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 10:24:46,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 10:24:46,151 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 10:24:46,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 10:24:46,151 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 10:24:46,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 10:24:46,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 10:24:46,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 10:24:46,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 10:24:46,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:24:46,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 10:24:46,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 10:24:46,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 10:24:46,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 10:24:46,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 10:24:46,153 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 10:24:46,153 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 10:24:46,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 10:24:46,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 10:24:46,153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4dd87ffa8279e5be73819f1eecf23f4704317559faef100e8eb60d719eb066b [2021-12-21 10:24:46,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 10:24:46,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 10:24:46,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 10:24:46,390 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 10:24:46,390 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 10:24:46,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2021-12-21 10:24:46,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/448679a50/f564fa41a5a9411183a4772daa37d6b2/FLAGd8353a708 [2021-12-21 10:24:46,900 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 10:24:46,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2021-12-21 10:24:46,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/448679a50/f564fa41a5a9411183a4772daa37d6b2/FLAGd8353a708 [2021-12-21 10:24:46,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/448679a50/f564fa41a5a9411183a4772daa37d6b2 [2021-12-21 10:24:46,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 10:24:46,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 10:24:46,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 10:24:46,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 10:24:46,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 10:24:46,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:24:46" (1/1) ... [2021-12-21 10:24:46,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e50c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:46, skipping insertion in model container [2021-12-21 10:24:46,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:24:46" (1/1) ... [2021-12-21 10:24:46,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 10:24:46,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 10:24:47,155 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/Problem01_label31.c[16993,17006] [2021-12-21 10:24:47,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:24:47,203 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 10:24:47,279 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/Problem01_label31.c[16993,17006] [2021-12-21 10:24:47,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:24:47,311 INFO L208 MainTranslator]: Completed translation [2021-12-21 10:24:47,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47 WrapperNode [2021-12-21 10:24:47,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 10:24:47,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 10:24:47,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 10:24:47,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 10:24:47,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47" (1/1) ... [2021-12-21 10:24:47,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47" (1/1) ... [2021-12-21 10:24:47,403 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2021-12-21 10:24:47,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 10:24:47,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 10:24:47,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 10:24:47,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 10:24:47,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47" (1/1) ... [2021-12-21 10:24:47,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47" (1/1) ... [2021-12-21 10:24:47,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47" (1/1) ... [2021-12-21 10:24:47,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47" (1/1) ... [2021-12-21 10:24:47,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47" (1/1) ... [2021-12-21 10:24:47,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47" (1/1) ... [2021-12-21 10:24:47,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47" (1/1) ... [2021-12-21 10:24:47,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 10:24:47,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 10:24:47,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 10:24:47,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 10:24:47,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47" (1/1) ... [2021-12-21 10:24:47,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:24:47,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:24:47,529 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 10:24:47,534 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 10:24:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 10:24:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 10:24:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 10:24:47,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 10:24:47,619 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 10:24:47,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 10:24:48,492 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 10:24:48,498 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 10:24:48,498 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 10:24:48,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:24:48 BoogieIcfgContainer [2021-12-21 10:24:48,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 10:24:48,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 10:24:48,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 10:24:48,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 10:24:48,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:24:46" (1/3) ... [2021-12-21 10:24:48,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4359ec53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:24:48, skipping insertion in model container [2021-12-21 10:24:48,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:24:47" (2/3) ... [2021-12-21 10:24:48,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4359ec53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:24:48, skipping insertion in model container [2021-12-21 10:24:48,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:24:48" (3/3) ... [2021-12-21 10:24:48,506 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label31.c [2021-12-21 10:24:48,510 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 10:24:48,510 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 10:24:48,551 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 10:24:48,556 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 10:24:48,557 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 10:24:48,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 10:24:48,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-21 10:24:48,577 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:48,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:24:48,578 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:48,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:48,583 INFO L85 PathProgramCache]: Analyzing trace with hash 779606815, now seen corresponding path program 1 times [2021-12-21 10:24:48,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:48,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293816929] [2021-12-21 10:24:48,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:48,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:48,897 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 10:24:48,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:48,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293816929] [2021-12-21 10:24:48,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293816929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:48,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:24:48,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 10:24:48,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502173792] [2021-12-21 10:24:48,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:48,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:24:48,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:48,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:24:48,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 10:24:48,932 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 10:24:49,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:49,425 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-12-21 10:24:49,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:24:49,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 92 [2021-12-21 10:24:49,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:49,435 INFO L225 Difference]: With dead ends: 528 [2021-12-21 10:24:49,436 INFO L226 Difference]: Without dead ends: 266 [2021-12-21 10:24:49,438 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 10:24:49,441 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 103 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:49,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 44 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-21 10:24:49,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-12-21 10:24:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-12-21 10:24:49,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4792452830188678) internal successors, (392), 265 states have internal predecessors, (392), 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 10:24:49,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2021-12-21 10:24:49,477 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 92 [2021-12-21 10:24:49,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:49,478 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2021-12-21 10:24:49,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 10:24:49,478 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2021-12-21 10:24:49,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-21 10:24:49,480 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:49,480 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:24:49,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 10:24:49,481 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:49,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:49,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1838806263, now seen corresponding path program 1 times [2021-12-21 10:24:49,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:49,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663631] [2021-12-21 10:24:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:49,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:24:49,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:49,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663631] [2021-12-21 10:24:49,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:49,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:24:49,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 10:24:49,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271583711] [2021-12-21 10:24:49,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:49,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:24:49,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:49,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:24:49,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 10:24:49,519 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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 10:24:49,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:49,823 INFO L93 Difference]: Finished difference Result 792 states and 1171 transitions. [2021-12-21 10:24:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:24:49,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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 97 [2021-12-21 10:24:49,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:49,826 INFO L225 Difference]: With dead ends: 792 [2021-12-21 10:24:49,826 INFO L226 Difference]: Without dead ends: 528 [2021-12-21 10:24:49,826 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 10:24:49,827 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:49,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 10:24:49,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-12-21 10:24:49,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-12-21 10:24:49,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.413662239089184) internal successors, (745), 527 states have internal predecessors, (745), 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 10:24:49,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2021-12-21 10:24:49,870 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 97 [2021-12-21 10:24:49,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:49,870 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2021-12-21 10:24:49,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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 10:24:49,870 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2021-12-21 10:24:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-21 10:24:49,879 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:49,879 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:24:49,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 10:24:49,880 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:49,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:49,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1448509982, now seen corresponding path program 1 times [2021-12-21 10:24:49,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:49,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418274237] [2021-12-21 10:24:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:49,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:49,967 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:24:49,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:49,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418274237] [2021-12-21 10:24:49,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418274237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:49,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:24:49,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 10:24:49,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960731382] [2021-12-21 10:24:49,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:49,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:24:49,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:49,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:24:49,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 10:24:49,970 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 10:24:50,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:50,245 INFO L93 Difference]: Finished difference Result 1447 states and 2032 transitions. [2021-12-21 10:24:50,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:24:50,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 107 [2021-12-21 10:24:50,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:50,248 INFO L225 Difference]: With dead ends: 1447 [2021-12-21 10:24:50,248 INFO L226 Difference]: Without dead ends: 921 [2021-12-21 10:24:50,249 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 10:24:50,250 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:50,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 56 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 10:24:50,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-12-21 10:24:50,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790. [2021-12-21 10:24:50,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.3219264892268694) internal successors, (1043), 789 states have internal predecessors, (1043), 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 10:24:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1043 transitions. [2021-12-21 10:24:50,275 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1043 transitions. Word has length 107 [2021-12-21 10:24:50,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:50,275 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 1043 transitions. [2021-12-21 10:24:50,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 10:24:50,276 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1043 transitions. [2021-12-21 10:24:50,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-21 10:24:50,277 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:50,277 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:24:50,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 10:24:50,277 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:50,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:50,278 INFO L85 PathProgramCache]: Analyzing trace with hash -172560370, now seen corresponding path program 1 times [2021-12-21 10:24:50,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:50,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829546288] [2021-12-21 10:24:50,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:50,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 10:24:50,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:50,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829546288] [2021-12-21 10:24:50,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829546288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:50,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:24:50,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 10:24:50,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76295541] [2021-12-21 10:24:50,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:50,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:24:50,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:50,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:24:50,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 10:24:50,317 INFO L87 Difference]: Start difference. First operand 790 states and 1043 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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 10:24:50,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:50,589 INFO L93 Difference]: Finished difference Result 1840 states and 2437 transitions. [2021-12-21 10:24:50,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:24:50,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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 108 [2021-12-21 10:24:50,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:50,595 INFO L225 Difference]: With dead ends: 1840 [2021-12-21 10:24:50,595 INFO L226 Difference]: Without dead ends: 1052 [2021-12-21 10:24:50,596 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 10:24:50,597 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:50,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 60 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 10:24:50,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-12-21 10:24:50,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2021-12-21 10:24:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 1.2768791627021885) internal successors, (1342), 1051 states have internal predecessors, (1342), 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 10:24:50,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1342 transitions. [2021-12-21 10:24:50,612 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1342 transitions. Word has length 108 [2021-12-21 10:24:50,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:50,613 INFO L470 AbstractCegarLoop]: Abstraction has 1052 states and 1342 transitions. [2021-12-21 10:24:50,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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 10:24:50,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1342 transitions. [2021-12-21 10:24:50,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-21 10:24:50,614 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:50,615 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:24:50,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 10:24:50,615 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:50,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:50,616 INFO L85 PathProgramCache]: Analyzing trace with hash 957692134, now seen corresponding path program 1 times [2021-12-21 10:24:50,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:50,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979142001] [2021-12-21 10:24:50,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:50,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:50,677 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:24:50,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:50,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979142001] [2021-12-21 10:24:50,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979142001] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:50,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:24:50,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 10:24:50,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767584831] [2021-12-21 10:24:50,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:50,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 10:24:50,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:50,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 10:24:50,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-21 10:24:50,680 INFO L87 Difference]: Start difference. First operand 1052 states and 1342 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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 10:24:51,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:51,167 INFO L93 Difference]: Finished difference Result 2626 states and 3314 transitions. [2021-12-21 10:24:51,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 10:24:51,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2021-12-21 10:24:51,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:51,173 INFO L225 Difference]: With dead ends: 2626 [2021-12-21 10:24:51,173 INFO L226 Difference]: Without dead ends: 1576 [2021-12-21 10:24:51,175 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 10:24:51,176 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 388 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:51,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 58 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-21 10:24:51,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-12-21 10:24:51,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2021-12-21 10:24:51,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.247229916897507) internal successors, (1801), 1444 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 10:24:51,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1801 transitions. [2021-12-21 10:24:51,208 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1801 transitions. Word has length 111 [2021-12-21 10:24:51,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:51,209 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1801 transitions. [2021-12-21 10:24:51,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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 10:24:51,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1801 transitions. [2021-12-21 10:24:51,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-21 10:24:51,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:51,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:24:51,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 10:24:51,216 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:51,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:51,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1450875047, now seen corresponding path program 1 times [2021-12-21 10:24:51,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:51,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398041442] [2021-12-21 10:24:51,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:51,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:24:51,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:51,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398041442] [2021-12-21 10:24:51,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398041442] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 10:24:51,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835621391] [2021-12-21 10:24:51,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:51,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:24:51,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:24:51,333 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 10:24:51,352 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 10:24:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:51,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 10:24:51,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:24:51,827 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-21 10:24:51,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 10:24:51,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835621391] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:51,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 10:24:51,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-21 10:24:51,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990002094] [2021-12-21 10:24:51,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:51,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:24:51,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:51,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:24:51,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:24:51,829 INFO L87 Difference]: Start difference. First operand 1445 states and 1801 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 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 10:24:52,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:52,137 INFO L93 Difference]: Finished difference Result 2233 states and 2734 transitions. [2021-12-21 10:24:52,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:24:52,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 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 129 [2021-12-21 10:24:52,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:52,143 INFO L225 Difference]: With dead ends: 2233 [2021-12-21 10:24:52,143 INFO L226 Difference]: Without dead ends: 2231 [2021-12-21 10:24:52,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 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 10:24:52,145 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 63 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:52,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 31 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 10:24:52,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-12-21 10:24:52,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2021-12-21 10:24:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.2246636771300448) internal successors, (2731), 2230 states have internal predecessors, (2731), 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 10:24:52,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2731 transitions. [2021-12-21 10:24:52,185 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2731 transitions. Word has length 129 [2021-12-21 10:24:52,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:52,186 INFO L470 AbstractCegarLoop]: Abstraction has 2231 states and 2731 transitions. [2021-12-21 10:24:52,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 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 10:24:52,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2731 transitions. [2021-12-21 10:24:52,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-21 10:24:52,188 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:52,188 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:24:52,224 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 10:24:52,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-21 10:24:52,403 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:52,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:52,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2027754892, now seen corresponding path program 1 times [2021-12-21 10:24:52,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:52,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415748740] [2021-12-21 10:24:52,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:52,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:52,474 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:24:52,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:52,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415748740] [2021-12-21 10:24:52,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415748740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:52,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:24:52,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 10:24:52,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208044720] [2021-12-21 10:24:52,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:52,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:24:52,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:52,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:24:52,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 10:24:52,477 INFO L87 Difference]: Start difference. First operand 2231 states and 2731 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 10:24:52,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:52,851 INFO L93 Difference]: Finished difference Result 4853 states and 5943 transitions. [2021-12-21 10:24:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:24:52,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 136 [2021-12-21 10:24:52,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:52,857 INFO L225 Difference]: With dead ends: 4853 [2021-12-21 10:24:52,857 INFO L226 Difference]: Without dead ends: 2362 [2021-12-21 10:24:52,859 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 10:24:52,860 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 102 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:52,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 193 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 10:24:52,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-12-21 10:24:52,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 1969. [2021-12-21 10:24:52,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.1102642276422765) internal successors, (2185), 1968 states have internal predecessors, (2185), 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 10:24:52,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2185 transitions. [2021-12-21 10:24:52,894 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2185 transitions. Word has length 136 [2021-12-21 10:24:52,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:52,895 INFO L470 AbstractCegarLoop]: Abstraction has 1969 states and 2185 transitions. [2021-12-21 10:24:52,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 10:24:52,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2185 transitions. [2021-12-21 10:24:52,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-21 10:24:52,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:52,899 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:24:52,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 10:24:52,900 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:52,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:52,900 INFO L85 PathProgramCache]: Analyzing trace with hash -575420573, now seen corresponding path program 1 times [2021-12-21 10:24:52,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:52,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923194592] [2021-12-21 10:24:52,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:52,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 98 proven. 10 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-21 10:24:52,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:52,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923194592] [2021-12-21 10:24:52,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923194592] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 10:24:52,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969959390] [2021-12-21 10:24:52,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:52,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:24:52,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:24:52,975 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 10:24:52,976 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 10:24:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:53,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 10:24:53,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:24:53,295 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-12-21 10:24:53,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 10:24:53,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969959390] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:53,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 10:24:53,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-21 10:24:53,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619427718] [2021-12-21 10:24:53,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:53,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:24:53,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:53,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:24:53,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:24:53,297 INFO L87 Difference]: Start difference. First operand 1969 states and 2185 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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 10:24:53,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:53,603 INFO L93 Difference]: Finished difference Result 4067 states and 4521 transitions. [2021-12-21 10:24:53,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:24:53,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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 171 [2021-12-21 10:24:53,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:53,610 INFO L225 Difference]: With dead ends: 4067 [2021-12-21 10:24:53,610 INFO L226 Difference]: Without dead ends: 2100 [2021-12-21 10:24:53,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:24:53,615 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 46 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:53,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 164 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 10:24:53,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2021-12-21 10:24:53,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2021-12-21 10:24:53,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.089820359281437) internal successors, (2002), 1837 states have internal predecessors, (2002), 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 10:24:53,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2002 transitions. [2021-12-21 10:24:53,657 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2002 transitions. Word has length 171 [2021-12-21 10:24:53,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:53,658 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 2002 transitions. [2021-12-21 10:24:53,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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 10:24:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2002 transitions. [2021-12-21 10:24:53,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-21 10:24:53,661 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:53,661 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:24:53,690 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 10:24:53,875 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,SelfDestructingSolverStorable7 [2021-12-21 10:24:53,876 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:53,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:53,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1648645907, now seen corresponding path program 1 times [2021-12-21 10:24:53,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:53,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106566845] [2021-12-21 10:24:53,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:53,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 120 proven. 10 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-12-21 10:24:53,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:53,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106566845] [2021-12-21 10:24:53,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106566845] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 10:24:53,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100602846] [2021-12-21 10:24:53,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:53,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:24:53,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:24:53,967 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 10:24:53,968 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 10:24:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:54,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 10:24:54,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:24:54,347 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-21 10:24:54,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 10:24:54,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100602846] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:54,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 10:24:54,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-21 10:24:54,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843655401] [2021-12-21 10:24:54,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:54,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:24:54,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:54,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:24:54,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:24:54,349 INFO L87 Difference]: Start difference. First operand 1838 states and 2002 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 10:24:54,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:54,652 INFO L93 Difference]: Finished difference Result 4198 states and 4584 transitions. [2021-12-21 10:24:54,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:24:54,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 203 [2021-12-21 10:24:54,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:54,658 INFO L225 Difference]: With dead ends: 4198 [2021-12-21 10:24:54,658 INFO L226 Difference]: Without dead ends: 2362 [2021-12-21 10:24:54,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:24:54,663 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 97 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:54,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 22 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 10:24:54,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-12-21 10:24:54,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2100. [2021-12-21 10:24:54,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.0919485469271082) internal successors, (2292), 2099 states have internal predecessors, (2292), 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 10:24:54,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2292 transitions. [2021-12-21 10:24:54,695 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2292 transitions. Word has length 203 [2021-12-21 10:24:54,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:54,696 INFO L470 AbstractCegarLoop]: Abstraction has 2100 states and 2292 transitions. [2021-12-21 10:24:54,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 10:24:54,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2292 transitions. [2021-12-21 10:24:54,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-21 10:24:54,699 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:54,700 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:24:54,733 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 10:24:54,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:24:54,918 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:54,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:54,919 INFO L85 PathProgramCache]: Analyzing trace with hash 372646815, now seen corresponding path program 1 times [2021-12-21 10:24:54,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:54,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268072952] [2021-12-21 10:24:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:54,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 125 proven. 10 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-21 10:24:54,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:54,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268072952] [2021-12-21 10:24:54,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268072952] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 10:24:54,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711169585] [2021-12-21 10:24:54,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:54,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:24:54,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:24:54,986 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 10:24:54,988 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 10:24:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:55,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 10:24:55,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:24:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-21 10:24:55,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 10:24:55,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711169585] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:55,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 10:24:55,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-21 10:24:55,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171984521] [2021-12-21 10:24:55,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:55,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:24:55,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:55,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:24:55,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:24:55,282 INFO L87 Difference]: Start difference. First operand 2100 states and 2292 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 10:24:55,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:55,553 INFO L93 Difference]: Finished difference Result 5377 states and 5868 transitions. [2021-12-21 10:24:55,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:24:55,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 208 [2021-12-21 10:24:55,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:55,562 INFO L225 Difference]: With dead ends: 5377 [2021-12-21 10:24:55,562 INFO L226 Difference]: Without dead ends: 3279 [2021-12-21 10:24:55,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:24:55,565 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 99 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:55,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 181 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 10:24:55,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2021-12-21 10:24:55,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3148. [2021-12-21 10:24:55,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.0838894184938037) internal successors, (3411), 3147 states have internal predecessors, (3411), 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 10:24:55,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3411 transitions. [2021-12-21 10:24:55,611 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3411 transitions. Word has length 208 [2021-12-21 10:24:55,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:55,611 INFO L470 AbstractCegarLoop]: Abstraction has 3148 states and 3411 transitions. [2021-12-21 10:24:55,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 10:24:55,612 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3411 transitions. [2021-12-21 10:24:55,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-12-21 10:24:55,617 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:55,617 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:24:55,649 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 10:24:55,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:24:55,835 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:55,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:55,836 INFO L85 PathProgramCache]: Analyzing trace with hash -252793177, now seen corresponding path program 1 times [2021-12-21 10:24:55,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:55,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317861829] [2021-12-21 10:24:55,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:55,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:55,917 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 241 proven. 29 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-12-21 10:24:55,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:55,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317861829] [2021-12-21 10:24:55,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317861829] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 10:24:55,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199693916] [2021-12-21 10:24:55,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:55,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:24:55,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:24:55,919 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 10:24:55,920 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 10:24:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:56,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 10:24:56,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:24:56,283 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-12-21 10:24:56,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 10:24:56,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199693916] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:56,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 10:24:56,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-21 10:24:56,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81534153] [2021-12-21 10:24:56,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:56,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:24:56,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:56,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:24:56,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:24:56,287 INFO L87 Difference]: Start difference. First operand 3148 states and 3411 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 10:24:56,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:56,522 INFO L93 Difference]: Finished difference Result 7211 states and 7837 transitions. [2021-12-21 10:24:56,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:24:56,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 287 [2021-12-21 10:24:56,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:56,531 INFO L225 Difference]: With dead ends: 7211 [2021-12-21 10:24:56,532 INFO L226 Difference]: Without dead ends: 3934 [2021-12-21 10:24:56,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:24:56,536 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 116 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:56,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 172 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 10:24:56,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2021-12-21 10:24:56,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3148. [2021-12-21 10:24:56,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.082936129647283) internal successors, (3408), 3147 states have internal predecessors, (3408), 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 10:24:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3408 transitions. [2021-12-21 10:24:56,581 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3408 transitions. Word has length 287 [2021-12-21 10:24:56,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:56,581 INFO L470 AbstractCegarLoop]: Abstraction has 3148 states and 3408 transitions. [2021-12-21 10:24:56,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 10:24:56,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3408 transitions. [2021-12-21 10:24:56,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-12-21 10:24:56,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:56,589 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:24:56,608 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 10:24:56,808 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,SelfDestructingSolverStorable10 [2021-12-21 10:24:56,808 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:56,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:56,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1327867404, now seen corresponding path program 1 times [2021-12-21 10:24:56,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:56,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396376885] [2021-12-21 10:24:56,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:56,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:56,896 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 224 proven. 10 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2021-12-21 10:24:56,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:56,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396376885] [2021-12-21 10:24:56,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396376885] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 10:24:56,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780424330] [2021-12-21 10:24:56,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:56,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:24:56,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:24:56,912 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 10:24:56,913 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 10:24:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:57,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 10:24:57,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:24:57,283 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-12-21 10:24:57,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 10:24:57,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780424330] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:57,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 10:24:57,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-21 10:24:57,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857006150] [2021-12-21 10:24:57,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:57,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:24:57,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:57,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:24:57,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:24:57,286 INFO L87 Difference]: Start difference. First operand 3148 states and 3408 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 10:24:57,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:57,520 INFO L93 Difference]: Finished difference Result 6818 states and 7407 transitions. [2021-12-21 10:24:57,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:24:57,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 299 [2021-12-21 10:24:57,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:57,531 INFO L225 Difference]: With dead ends: 6818 [2021-12-21 10:24:57,531 INFO L226 Difference]: Without dead ends: 3803 [2021-12-21 10:24:57,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:24:57,535 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 113 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:57,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 176 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 10:24:57,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2021-12-21 10:24:57,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3410. [2021-12-21 10:24:57,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3409 states have (on average 1.0794954532120857) internal successors, (3680), 3409 states have internal predecessors, (3680), 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 10:24:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 3680 transitions. [2021-12-21 10:24:57,598 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 3680 transitions. Word has length 299 [2021-12-21 10:24:57,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:57,599 INFO L470 AbstractCegarLoop]: Abstraction has 3410 states and 3680 transitions. [2021-12-21 10:24:57,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 10:24:57,599 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 3680 transitions. [2021-12-21 10:24:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-12-21 10:24:57,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:24:57,606 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:24:57,626 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 10:24:57,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:24:57,824 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:24:57,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:24:57,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1445198165, now seen corresponding path program 1 times [2021-12-21 10:24:57,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:24:57,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026789474] [2021-12-21 10:24:57,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:57,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:24:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:57,922 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 241 proven. 10 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2021-12-21 10:24:57,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:24:57,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026789474] [2021-12-21 10:24:57,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026789474] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 10:24:57,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090905915] [2021-12-21 10:24:57,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:24:57,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:24:57,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:24:57,924 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 10:24:57,925 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 10:24:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:24:58,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 10:24:58,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:24:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2021-12-21 10:24:58,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 10:24:58,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090905915] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:24:58,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 10:24:58,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-21 10:24:58,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741587989] [2021-12-21 10:24:58,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:24:58,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 10:24:58,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:24:58,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 10:24:58,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-21 10:24:58,358 INFO L87 Difference]: Start difference. First operand 3410 states and 3680 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 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 10:24:58,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:24:58,713 INFO L93 Difference]: Finished difference Result 6292 states and 6792 transitions. [2021-12-21 10:24:58,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 10:24:58,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 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 316 [2021-12-21 10:24:58,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:24:58,714 INFO L225 Difference]: With dead ends: 6292 [2021-12-21 10:24:58,714 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 10:24:58,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-21 10:24:58,719 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 318 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 10:24:58,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 34 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 10:24:58,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 10:24:58,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 10:24:58,720 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 10:24:58,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 10:24:58,720 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 316 [2021-12-21 10:24:58,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:24:58,720 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 10:24:58,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 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 10:24:58,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 10:24:58,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 10:24:58,723 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 10:24:58,757 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 10:24:58,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:24:58,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-21 10:24:59,723 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-12-21 10:24:59,724 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-12-21 10:24:59,724 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-12-21 10:24:59,724 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-12-21 10:24:59,724 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-12-21 10:24:59,724 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-12-21 10:24:59,724 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-12-21 10:24:59,724 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-12-21 10:24:59,724 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,725 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,725 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,725 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,725 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-12-21 10:24:59,725 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,725 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,725 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-12-21 10:24:59,725 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-12-21 10:24:59,725 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-12-21 10:24:59,725 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-12-21 10:24:59,726 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-12-21 10:24:59,727 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-12-21 10:24:59,727 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-12-21 10:24:59,727 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-12-21 10:24:59,727 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-12-21 10:24:59,727 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-12-21 10:24:59,727 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-12-21 10:24:59,728 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-12-21 10:24:59,728 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,728 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,728 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,728 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,728 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,728 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-12-21 10:24:59,728 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,729 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-12-21 10:24:59,729 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-12-21 10:24:59,729 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-12-21 10:24:59,729 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-12-21 10:24:59,729 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-12-21 10:24:59,730 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-12-21 10:24:59,730 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-12-21 10:24:59,730 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-12-21 10:24:59,730 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-12-21 10:24:59,730 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-12-21 10:24:59,730 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-12-21 10:24:59,730 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-12-21 10:24:59,730 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-12-21 10:24:59,730 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-12-21 10:24:59,731 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,731 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,731 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,731 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,731 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,731 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,731 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-12-21 10:24:59,731 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-12-21 10:24:59,732 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-12-21 10:24:59,732 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-12-21 10:24:59,732 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-12-21 10:24:59,732 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-12-21 10:24:59,732 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-12-21 10:24:59,732 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-12-21 10:24:59,732 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-12-21 10:24:59,732 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-12-21 10:24:59,732 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-12-21 10:24:59,732 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-12-21 10:24:59,733 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,733 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,733 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,733 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,733 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,733 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,733 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-12-21 10:24:59,733 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-12-21 10:24:59,733 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-12-21 10:24:59,733 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-12-21 10:24:59,734 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-12-21 10:24:59,734 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-12-21 10:24:59,734 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-12-21 10:24:59,734 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-12-21 10:24:59,734 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-12-21 10:24:59,734 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-12-21 10:24:59,734 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,734 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,734 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,735 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,735 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,735 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,735 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-12-21 10:24:59,735 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-12-21 10:24:59,735 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-12-21 10:24:59,735 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-12-21 10:24:59,735 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-12-21 10:24:59,735 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-12-21 10:24:59,735 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-12-21 10:24:59,736 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-12-21 10:24:59,736 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-12-21 10:24:59,736 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-12-21 10:24:59,736 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-12-21 10:24:59,736 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-12-21 10:24:59,736 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-12-21 10:24:59,736 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-12-21 10:24:59,736 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-12-21 10:24:59,736 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,737 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,737 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,737 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,737 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,737 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-21 10:24:59,737 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-12-21 10:24:59,737 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-12-21 10:24:59,737 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-12-21 10:24:59,737 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-12-21 10:24:59,737 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-12-21 10:24:59,738 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-12-21 10:24:59,738 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-12-21 10:24:59,738 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-12-21 10:24:59,738 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-12-21 10:24:59,738 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse7 (<= ~a8~0 14)) (.cse5 (<= 5 ~a16~0)) (.cse6 (<= ~a17~0 0)) (.cse4 (<= ~a16~0 5)) (.cse0 (<= ~a7~0 0)) (.cse2 (= ~a21~0 1)) (.cse3 (= ~a17~0 1)) (.cse9 (= ~a20~0 1)) (.cse1 (<= ~a20~0 0)) (.cse8 (<= ~a8~0 13))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse2) (and .cse0 (<= 6 ~a16~0) .cse6 .cse2) (and .cse8 .cse6 .cse2) (and .cse8 .cse6 .cse9) (and .cse8 .cse2 .cse3 .cse9) (and .cse0 .cse6 .cse7 .cse2) (and .cse1 .cse6 .cse2) (and .cse0 .cse6 .cse2 .cse9) (and .cse5 (not (= ~a7~0 1)) .cse6 .cse2 .cse9) (and .cse8 .cse3 .cse4 .cse9) (and .cse0 .cse2 .cse3 .cse9) (and .cse1 .cse8))) [2021-12-21 10:24:59,739 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,739 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,739 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,739 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,739 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,739 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-12-21 10:24:59,739 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-12-21 10:24:59,739 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-12-21 10:24:59,739 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-12-21 10:24:59,740 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-12-21 10:24:59,740 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-12-21 10:24:59,740 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-12-21 10:24:59,740 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-12-21 10:24:59,740 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-12-21 10:24:59,740 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-12-21 10:24:59,740 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-12-21 10:24:59,740 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-12-21 10:24:59,740 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-21 10:24:59,741 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-12-21 10:24:59,741 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-12-21 10:24:59,741 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,741 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,741 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,741 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,741 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,741 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-12-21 10:24:59,741 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-12-21 10:24:59,742 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-12-21 10:24:59,742 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-12-21 10:24:59,742 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-12-21 10:24:59,742 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-12-21 10:24:59,742 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-12-21 10:24:59,742 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-12-21 10:24:59,742 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-12-21 10:24:59,742 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-21 10:24:59,742 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,742 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,743 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,743 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,743 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-12-21 10:24:59,743 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,744 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-12-21 10:24:59,744 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-12-21 10:24:59,745 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-12-21 10:24:59,745 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-12-21 10:24:59,745 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-12-21 10:24:59,745 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-12-21 10:24:59,745 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-12-21 10:24:59,745 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-12-21 10:24:59,745 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-12-21 10:24:59,746 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-12-21 10:24:59,746 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-12-21 10:24:59,746 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-12-21 10:24:59,746 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-12-21 10:24:59,746 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,747 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse7 (<= ~a8~0 14)) (.cse5 (<= 5 ~a16~0)) (.cse6 (<= ~a17~0 0)) (.cse4 (<= ~a16~0 5)) (.cse0 (<= ~a7~0 0)) (.cse2 (= ~a21~0 1)) (.cse3 (= ~a17~0 1)) (.cse9 (= ~a20~0 1)) (.cse1 (<= ~a20~0 0)) (.cse8 (<= ~a8~0 13))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse2) (and .cse0 (<= 6 ~a16~0) .cse6 .cse2) (and .cse8 .cse6 .cse2) (and .cse8 .cse6 .cse9) (and .cse8 .cse2 .cse3 .cse9) (and .cse0 .cse6 .cse7 .cse2) (and .cse1 .cse6 .cse2) (and .cse0 .cse6 .cse2 .cse9) (and .cse5 (not (= ~a7~0 1)) .cse6 .cse2 .cse9) (and .cse8 .cse3 .cse4 .cse9) (and .cse0 .cse2 .cse3 .cse9) (and .cse1 .cse8))) [2021-12-21 10:24:59,747 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,747 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,747 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,748 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,748 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-12-21 10:24:59,748 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-21 10:24:59,748 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 462) no Hoare annotation was computed. [2021-12-21 10:24:59,748 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-12-21 10:24:59,748 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-12-21 10:24:59,748 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-12-21 10:24:59,748 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-12-21 10:24:59,748 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-12-21 10:24:59,749 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-12-21 10:24:59,749 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-12-21 10:24:59,749 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,749 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,749 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,749 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,749 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-12-21 10:24:59,749 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-12-21 10:24:59,749 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-12-21 10:24:59,750 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-12-21 10:24:59,750 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-12-21 10:24:59,754 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:24:59,755 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 10:24:59,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 10:24:59 BoogieIcfgContainer [2021-12-21 10:24:59,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 10:24:59,796 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 10:24:59,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 10:24:59,796 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 10:24:59,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:24:48" (3/4) ... [2021-12-21 10:24:59,800 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 10:24:59,819 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-21 10:24:59,821 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-21 10:24:59,821 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 10:24:59,822 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 10:24:59,900 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 10:24:59,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 10:24:59,901 INFO L158 Benchmark]: Toolchain (without parser) took 12970.82ms. Allocated memory was 86.0MB in the beginning and 234.9MB in the end (delta: 148.9MB). Free memory was 44.8MB in the beginning and 97.6MB in the end (delta: -52.8MB). Peak memory consumption was 98.1MB. Max. memory is 16.1GB. [2021-12-21 10:24:59,902 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:24:59,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.72ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 44.6MB in the beginning and 60.9MB in the end (delta: -16.3MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2021-12-21 10:24:59,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.47ms. Allocated memory is still 104.9MB. Free memory was 60.9MB in the beginning and 55.3MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 10:24:59,903 INFO L158 Benchmark]: Boogie Preprocessor took 76.82ms. Allocated memory is still 104.9MB. Free memory was 55.3MB in the beginning and 51.1MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 10:24:59,903 INFO L158 Benchmark]: RCFGBuilder took 1017.40ms. Allocated memory is still 104.9MB. Free memory was 51.1MB in the beginning and 43.1MB in the end (delta: 7.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-21 10:24:59,903 INFO L158 Benchmark]: TraceAbstraction took 11294.45ms. Allocated memory was 104.9MB in the beginning and 234.9MB in the end (delta: 130.0MB). Free memory was 42.6MB in the beginning and 112.3MB in the end (delta: -69.7MB). Peak memory consumption was 108.1MB. Max. memory is 16.1GB. [2021-12-21 10:24:59,904 INFO L158 Benchmark]: Witness Printer took 105.03ms. Allocated memory is still 234.9MB. Free memory was 112.3MB in the beginning and 97.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-21 10:24:59,909 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.72ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 44.6MB in the beginning and 60.9MB in the end (delta: -16.3MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.47ms. Allocated memory is still 104.9MB. Free memory was 60.9MB in the beginning and 55.3MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.82ms. Allocated memory is still 104.9MB. Free memory was 55.3MB in the beginning and 51.1MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1017.40ms. Allocated memory is still 104.9MB. Free memory was 51.1MB in the beginning and 43.1MB in the end (delta: 7.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 11294.45ms. Allocated memory was 104.9MB in the beginning and 234.9MB in the end (delta: 130.0MB). Free memory was 42.6MB in the beginning and 112.3MB in the end (delta: -69.7MB). Peak memory consumption was 108.1MB. Max. memory is 16.1GB. * Witness Printer took 105.03ms. Allocated memory is still 234.9MB. Free memory was 112.3MB in the beginning and 97.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 462]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.2s, OverallIterations: 13, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1871 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1871 mSDsluCounter, 1220 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 739 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4519 IncrementalHoareTripleChecker+Invalid, 5258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 739 mSolverCounterUnsat, 1146 mSDtfsCounter, 4519 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1641 GetRequests, 1612 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3410occurred in iteration=12, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 2489 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 57 NumberOfFragments, 345 HoareAnnotationTreeSize, 3 FomulaSimplifications, 240 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 3088 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 3877 NumberOfCodeBlocks, 3877 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3857 ConstructedInterpolants, 0 QuantifiedInterpolants, 7539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3134 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 20 InterpolantComputations, 13 PerfectInterpolantSequences, 4736/4851 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: 593]: Loop Invariant Derived loop invariant: (((((((((((((((a7 <= 0 && a20 <= 0) && a21 == 1) && a17 == 1) || (((a20 <= 0 && a21 == 1) && a17 == 1) && a16 <= 5)) || (((5 <= a16 && a17 <= 0) && a8 <= 14) && a21 == 1)) || (((a7 <= 0 && 6 <= a16) && a17 <= 0) && a21 == 1)) || ((a8 <= 13 && a17 <= 0) && a21 == 1)) || ((a8 <= 13 && a17 <= 0) && a20 == 1)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((a7 <= 0 && a17 <= 0) && a8 <= 14) && a21 == 1)) || ((a20 <= 0 && a17 <= 0) && a21 == 1)) || (((a7 <= 0 && a17 <= 0) && a21 == 1) && a20 == 1)) || ((((5 <= a16 && !(a7 == 1)) && a17 <= 0) && a21 == 1) && a20 == 1)) || (((a8 <= 13 && a17 == 1) && a16 <= 5) && a20 == 1)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1)) || (a20 <= 0 && a8 <= 13) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((((((a7 <= 0 && a20 <= 0) && a21 == 1) && a17 == 1) || (((a20 <= 0 && a21 == 1) && a17 == 1) && a16 <= 5)) || (((5 <= a16 && a17 <= 0) && a8 <= 14) && a21 == 1)) || (((a7 <= 0 && 6 <= a16) && a17 <= 0) && a21 == 1)) || ((a8 <= 13 && a17 <= 0) && a21 == 1)) || ((a8 <= 13 && a17 <= 0) && a20 == 1)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((a7 <= 0 && a17 <= 0) && a8 <= 14) && a21 == 1)) || ((a20 <= 0 && a17 <= 0) && a21 == 1)) || (((a7 <= 0 && a17 <= 0) && a21 == 1) && a20 == 1)) || ((((5 <= a16 && !(a7 == 1)) && a17 <= 0) && a21 == 1) && a20 == 1)) || (((a8 <= 13 && a17 == 1) && a16 <= 5) && a20 == 1)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1)) || (a20 <= 0 && a8 <= 13) RESULT: Ultimate proved your program to be correct! [2021-12-21 10:24:59,981 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