./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/systemc/transmitter.13.cil.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 5975f0f3825b3a6653676f33bd69d14e1e58fcf0306bfb5508ab91dc8951d6c4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 18:17:25,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:17:25,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:17:25,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:17:25,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:17:25,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:17:25,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:17:25,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:17:25,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:17:25,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:17:25,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:17:25,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:17:25,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:17:25,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:17:25,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:17:25,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:17:25,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:17:25,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:17:25,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:17:25,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:17:25,108 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:17:25,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:17:25,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:17:25,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:17:25,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:17:25,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:17:25,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:17:25,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:17:25,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:17:25,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:17:25,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:17:25,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:17:25,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:17:25,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:17:25,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:17:25,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:17:25,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:17:25,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:17:25,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:17:25,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:17:25,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:17:25,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:17:25,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:17:25,178 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:17:25,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:17:25,179 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:17:25,179 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:17:25,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:17:25,180 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:17:25,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:17:25,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:17:25,180 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:17:25,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:17:25,181 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:17:25,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:17:25,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:17:25,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:17:25,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:17:25,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:17:25,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:17:25,182 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:17:25,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:17:25,182 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:17:25,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:17:25,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:17:25,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:17:25,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:17:25,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:17:25,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:17:25,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:17:25,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:17:25,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:17:25,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:17:25,184 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:17:25,184 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:17:25,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:17:25,185 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5975f0f3825b3a6653676f33bd69d14e1e58fcf0306bfb5508ab91dc8951d6c4 [2022-07-13 18:17:25,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:17:25,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:17:25,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:17:25,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:17:25,610 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:17:25,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.13.cil.c [2022-07-13 18:17:25,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f0113064/ef7d49d8690f4292a2c73a219b88a79a/FLAGaa04e012b [2022-07-13 18:17:26,344 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:17:26,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.13.cil.c [2022-07-13 18:17:26,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f0113064/ef7d49d8690f4292a2c73a219b88a79a/FLAGaa04e012b [2022-07-13 18:17:26,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f0113064/ef7d49d8690f4292a2c73a219b88a79a [2022-07-13 18:17:26,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:17:26,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:17:26,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:17:26,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:17:26,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:17:26,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:17:26" (1/1) ... [2022-07-13 18:17:26,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729f3354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:26, skipping insertion in model container [2022-07-13 18:17:26,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:17:26" (1/1) ... [2022-07-13 18:17:26,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:17:26,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:17:26,968 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/systemc/transmitter.13.cil.c[706,719] [2022-07-13 18:17:27,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:17:27,211 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:17:27,235 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/systemc/transmitter.13.cil.c[706,719] [2022-07-13 18:17:27,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:17:27,398 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:17:27,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27 WrapperNode [2022-07-13 18:17:27,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:17:27,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:17:27,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:17:27,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:17:27,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27" (1/1) ... [2022-07-13 18:17:27,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27" (1/1) ... [2022-07-13 18:17:27,542 INFO L137 Inliner]: procedures = 54, calls = 69, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 891 [2022-07-13 18:17:27,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:17:27,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:17:27,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:17:27,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:17:27,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27" (1/1) ... [2022-07-13 18:17:27,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27" (1/1) ... [2022-07-13 18:17:27,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27" (1/1) ... [2022-07-13 18:17:27,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27" (1/1) ... [2022-07-13 18:17:27,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27" (1/1) ... [2022-07-13 18:17:27,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27" (1/1) ... [2022-07-13 18:17:27,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27" (1/1) ... [2022-07-13 18:17:27,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:17:27,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:17:27,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:17:27,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:17:27,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27" (1/1) ... [2022-07-13 18:17:27,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:17:27,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:17:27,708 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) [2022-07-13 18:17:27,776 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 [2022-07-13 18:17:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:17:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-13 18:17:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-13 18:17:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-13 18:17:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-13 18:17:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-13 18:17:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-13 18:17:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-13 18:17:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-13 18:17:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-13 18:17:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-13 18:17:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-13 18:17:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-13 18:17:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:17:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:17:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:17:28,002 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:17:28,012 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:17:28,944 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:17:28,957 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:17:28,957 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-13 18:17:28,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:17:28 BoogieIcfgContainer [2022-07-13 18:17:28,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:17:28,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:17:28,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:17:28,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:17:28,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:17:26" (1/3) ... [2022-07-13 18:17:28,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ab1e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:17:28, skipping insertion in model container [2022-07-13 18:17:28,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:27" (2/3) ... [2022-07-13 18:17:28,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ab1e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:17:28, skipping insertion in model container [2022-07-13 18:17:28,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:17:28" (3/3) ... [2022-07-13 18:17:28,980 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.13.cil.c [2022-07-13 18:17:29,004 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:17:29,004 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 18:17:29,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:17:29,131 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@49eec160, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@24af207f [2022-07-13 18:17:29,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 18:17:29,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 403 states, 369 states have (on average 1.6666666666666667) internal successors, (615), 371 states have internal predecessors, (615), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-13 18:17:29,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:17:29,188 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:29,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:17:29,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:29,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1079055231, now seen corresponding path program 1 times [2022-07-13 18:17:29,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:29,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772412536] [2022-07-13 18:17:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:29,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:29,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:29,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:17:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:29,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:17:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:29,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:17:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:30,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:17:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:30,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:30,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:30,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772412536] [2022-07-13 18:17:30,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772412536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:30,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:30,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 18:17:30,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217635082] [2022-07-13 18:17:30,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:30,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:17:30,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:30,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:17:30,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:17:30,091 INFO L87 Difference]: Start difference. First operand has 403 states, 369 states have (on average 1.6666666666666667) internal successors, (615), 371 states have internal predecessors, (615), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:32,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:17:32,292 INFO L93 Difference]: Finished difference Result 950 states and 1584 transitions. [2022-07-13 18:17:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 18:17:32,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:17:32,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:17:32,311 INFO L225 Difference]: With dead ends: 950 [2022-07-13 18:17:32,312 INFO L226 Difference]: Without dead ends: 549 [2022-07-13 18:17:32,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 18:17:32,339 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 1095 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-13 18:17:32,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 1117 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-13 18:17:32,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-07-13 18:17:32,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 398. [2022-07-13 18:17:32,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 365 states have (on average 1.5726027397260274) internal successors, (574), 366 states have internal predecessors, (574), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-13 18:17:32,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 626 transitions. [2022-07-13 18:17:32,489 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 626 transitions. Word has length 199 [2022-07-13 18:17:32,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:17:32,489 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 626 transitions. [2022-07-13 18:17:32,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:32,490 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 626 transitions. [2022-07-13 18:17:32,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:17:32,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:32,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:17:32,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 18:17:32,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:32,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:32,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1566128957, now seen corresponding path program 1 times [2022-07-13 18:17:32,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:32,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260047840] [2022-07-13 18:17:32,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:32,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:32,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:32,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:17:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:32,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:17:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:32,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:17:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:17:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:32,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:32,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260047840] [2022-07-13 18:17:32,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260047840] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:32,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:32,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 18:17:32,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575516895] [2022-07-13 18:17:32,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:32,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:17:32,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:32,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:17:32,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:17:32,861 INFO L87 Difference]: Start difference. First operand 398 states and 626 transitions. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:34,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:17:34,893 INFO L93 Difference]: Finished difference Result 933 states and 1488 transitions. [2022-07-13 18:17:34,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 18:17:34,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:17:34,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:17:34,898 INFO L225 Difference]: With dead ends: 933 [2022-07-13 18:17:34,898 INFO L226 Difference]: Without dead ends: 549 [2022-07-13 18:17:34,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 18:17:34,903 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 1082 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 18:17:34,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 1103 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 18:17:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-07-13 18:17:34,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 398. [2022-07-13 18:17:34,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 365 states have (on average 1.5698630136986302) internal successors, (573), 366 states have internal predecessors, (573), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-13 18:17:34,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 625 transitions. [2022-07-13 18:17:34,950 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 625 transitions. Word has length 199 [2022-07-13 18:17:34,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:17:34,960 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 625 transitions. [2022-07-13 18:17:34,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:34,960 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 625 transitions. [2022-07-13 18:17:34,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:17:34,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:34,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:17:34,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 18:17:34,963 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:34,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:34,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1205075717, now seen corresponding path program 1 times [2022-07-13 18:17:34,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:34,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342329944] [2022-07-13 18:17:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:34,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:35,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:17:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:35,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:17:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:35,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:17:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:35,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:17:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:35,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:35,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:35,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342329944] [2022-07-13 18:17:35,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342329944] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:35,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:35,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:17:35,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115906558] [2022-07-13 18:17:35,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:35,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 18:17:35,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:35,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 18:17:35,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 18:17:35,264 INFO L87 Difference]: Start difference. First operand 398 states and 625 transitions. Second operand has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:39,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:17:39,402 INFO L93 Difference]: Finished difference Result 1473 states and 2378 transitions. [2022-07-13 18:17:39,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 18:17:39,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:17:39,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:17:39,409 INFO L225 Difference]: With dead ends: 1473 [2022-07-13 18:17:39,409 INFO L226 Difference]: Without dead ends: 1096 [2022-07-13 18:17:39,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-13 18:17:39,417 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1641 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-13 18:17:39,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 1741 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-13 18:17:39,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-07-13 18:17:39,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 794. [2022-07-13 18:17:39,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 733 states have (on average 1.5811732605729878) internal successors, (1159), 735 states have internal predecessors, (1159), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-07-13 18:17:39,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1256 transitions. [2022-07-13 18:17:39,518 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1256 transitions. Word has length 199 [2022-07-13 18:17:39,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:17:39,519 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 1256 transitions. [2022-07-13 18:17:39,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:39,519 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1256 transitions. [2022-07-13 18:17:39,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:17:39,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:39,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:17:39,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 18:17:39,521 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:39,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:39,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1435906438, now seen corresponding path program 1 times [2022-07-13 18:17:39,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:39,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167669486] [2022-07-13 18:17:39,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:39,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:39,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:17:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:39,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:17:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:17:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:17:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:39,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:39,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167669486] [2022-07-13 18:17:39,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167669486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:39,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:39,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:17:39,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093467660] [2022-07-13 18:17:39,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:39,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:17:39,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:39,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:17:39,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:17:39,722 INFO L87 Difference]: Start difference. First operand 794 states and 1256 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:45,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:17:45,391 INFO L93 Difference]: Finished difference Result 2629 states and 4211 transitions. [2022-07-13 18:17:45,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:17:45,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:17:45,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:17:45,415 INFO L225 Difference]: With dead ends: 2629 [2022-07-13 18:17:45,424 INFO L226 Difference]: Without dead ends: 1856 [2022-07-13 18:17:45,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-13 18:17:45,432 INFO L413 NwaCegarLoop]: 1304 mSDtfsCounter, 1811 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1830 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 4237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-13 18:17:45,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1830 Valid, 3287 Invalid, 4237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-13 18:17:45,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2022-07-13 18:17:45,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1162. [2022-07-13 18:17:45,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1073 states have (on average 1.5740913327120223) internal successors, (1689), 1076 states have internal predecessors, (1689), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2022-07-13 18:17:45,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1830 transitions. [2022-07-13 18:17:45,603 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1830 transitions. Word has length 199 [2022-07-13 18:17:45,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:17:45,604 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1830 transitions. [2022-07-13 18:17:45,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:45,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1830 transitions. [2022-07-13 18:17:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:17:45,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:45,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:17:45,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 18:17:45,615 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:45,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:45,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1455447560, now seen corresponding path program 1 times [2022-07-13 18:17:45,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:45,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605825236] [2022-07-13 18:17:45,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:45,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:17:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:17:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:17:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:17:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:45,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:45,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:45,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605825236] [2022-07-13 18:17:45,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605825236] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:45,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:45,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:17:45,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497157092] [2022-07-13 18:17:45,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:45,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:17:45,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:45,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:17:45,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:17:45,867 INFO L87 Difference]: Start difference. First operand 1162 states and 1830 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:51,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:17:51,123 INFO L93 Difference]: Finished difference Result 4050 states and 6479 transitions. [2022-07-13 18:17:51,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:17:51,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:17:51,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:17:51,140 INFO L225 Difference]: With dead ends: 4050 [2022-07-13 18:17:51,140 INFO L226 Difference]: Without dead ends: 2909 [2022-07-13 18:17:51,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-13 18:17:51,156 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1805 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4144 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 3275 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-13 18:17:51,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 3275 Invalid, 4228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4144 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-13 18:17:51,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2022-07-13 18:17:51,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 1902. [2022-07-13 18:17:51,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1757 states have (on average 1.5685828116107001) internal successors, (2756), 1762 states have internal predecessors, (2756), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2022-07-13 18:17:51,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2989 transitions. [2022-07-13 18:17:51,394 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2989 transitions. Word has length 199 [2022-07-13 18:17:51,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:17:51,395 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2989 transitions. [2022-07-13 18:17:51,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:51,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2989 transitions. [2022-07-13 18:17:51,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:17:51,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:51,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:17:51,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 18:17:51,416 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:51,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:51,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1982841610, now seen corresponding path program 1 times [2022-07-13 18:17:51,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:51,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027510157] [2022-07-13 18:17:51,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:51,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:17:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:17:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:17:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:17:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:51,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:51,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:51,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027510157] [2022-07-13 18:17:51,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027510157] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:51,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:51,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:17:51,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503292146] [2022-07-13 18:17:51,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:51,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:17:51,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:51,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:17:51,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:17:51,661 INFO L87 Difference]: Start difference. First operand 1902 states and 2989 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:56,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:17:56,842 INFO L93 Difference]: Finished difference Result 6790 states and 10822 transitions. [2022-07-13 18:17:56,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:17:56,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:17:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:17:56,859 INFO L225 Difference]: With dead ends: 6790 [2022-07-13 18:17:56,859 INFO L226 Difference]: Without dead ends: 4909 [2022-07-13 18:17:56,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-13 18:17:56,865 INFO L413 NwaCegarLoop]: 1287 mSDtfsCounter, 1804 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4136 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 4220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:17:56,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 3270 Invalid, 4220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4136 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-13 18:17:56,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4909 states. [2022-07-13 18:17:57,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4909 to 3383. [2022-07-13 18:17:57,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3383 states, 3126 states have (on average 1.564299424184261) internal successors, (4890), 3135 states have internal predecessors, (4890), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2022-07-13 18:17:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 5313 transitions. [2022-07-13 18:17:57,116 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 5313 transitions. Word has length 199 [2022-07-13 18:17:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:17:57,116 INFO L495 AbstractCegarLoop]: Abstraction has 3383 states and 5313 transitions. [2022-07-13 18:17:57,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:17:57,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 5313 transitions. [2022-07-13 18:17:57,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:17:57,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:17:57,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:17:57,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 18:17:57,122 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:17:57,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:17:57,122 INFO L85 PathProgramCache]: Analyzing trace with hash 614381000, now seen corresponding path program 1 times [2022-07-13 18:17:57,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:17:57,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434662186] [2022-07-13 18:17:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:17:57,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:17:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:57,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:17:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:57,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:17:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:58,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:17:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:58,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:17:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:58,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:17:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:17:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:17:58,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:17:58,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434662186] [2022-07-13 18:17:58,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434662186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:17:58,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:17:58,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:17:58,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522772318] [2022-07-13 18:17:58,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:17:58,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:17:58,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:17:58,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:17:58,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:17:58,119 INFO L87 Difference]: Start difference. First operand 3383 states and 5313 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:18:03,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:03,194 INFO L93 Difference]: Finished difference Result 12269 states and 19524 transitions. [2022-07-13 18:18:03,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:18:03,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:18:03,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:03,264 INFO L225 Difference]: With dead ends: 12269 [2022-07-13 18:18:03,279 INFO L226 Difference]: Without dead ends: 8907 [2022-07-13 18:18:03,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-13 18:18:03,310 INFO L413 NwaCegarLoop]: 1282 mSDtfsCounter, 1803 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4128 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 4212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-13 18:18:03,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 3265 Invalid, 4212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4128 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-13 18:18:03,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8907 states. [2022-07-13 18:18:03,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8907 to 6352. [2022-07-13 18:18:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6352 states, 5871 states have (on average 1.5615738375063872) internal successors, (9168), 5888 states have internal predecessors, (9168), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2022-07-13 18:18:03,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6352 states to 6352 states and 9989 transitions. [2022-07-13 18:18:03,955 INFO L78 Accepts]: Start accepts. Automaton has 6352 states and 9989 transitions. Word has length 199 [2022-07-13 18:18:03,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:03,955 INFO L495 AbstractCegarLoop]: Abstraction has 6352 states and 9989 transitions. [2022-07-13 18:18:03,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:18:03,956 INFO L276 IsEmpty]: Start isEmpty. Operand 6352 states and 9989 transitions. [2022-07-13 18:18:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:18:03,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:03,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:18:03,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 18:18:03,978 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:03,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:03,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1262973770, now seen corresponding path program 1 times [2022-07-13 18:18:03,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:03,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442294039] [2022-07-13 18:18:03,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:03,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:04,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:18:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:04,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:18:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:04,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:18:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:04,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:18:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:04,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:04,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:04,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442294039] [2022-07-13 18:18:04,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442294039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:04,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:04,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:04,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722830720] [2022-07-13 18:18:04,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:04,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:04,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:04,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:04,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:04,211 INFO L87 Difference]: Start difference. First operand 6352 states and 9989 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:18:09,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:09,302 INFO L93 Difference]: Finished difference Result 23228 states and 36990 transitions. [2022-07-13 18:18:09,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:18:09,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:18:09,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:09,448 INFO L225 Difference]: With dead ends: 23228 [2022-07-13 18:18:09,448 INFO L226 Difference]: Without dead ends: 16897 [2022-07-13 18:18:09,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-13 18:18:09,471 INFO L413 NwaCegarLoop]: 1277 mSDtfsCounter, 1802 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4120 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1821 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 4204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-13 18:18:09,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1821 Valid, 3260 Invalid, 4204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4120 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-13 18:18:09,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16897 states. [2022-07-13 18:18:10,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16897 to 12305. [2022-07-13 18:18:10,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12305 states, 11376 states have (on average 1.5599507735583684) internal successors, (17746), 11409 states have internal predecessors, (17746), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-07-13 18:18:10,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12305 states to 12305 states and 19417 transitions. [2022-07-13 18:18:10,407 INFO L78 Accepts]: Start accepts. Automaton has 12305 states and 19417 transitions. Word has length 199 [2022-07-13 18:18:10,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:10,408 INFO L495 AbstractCegarLoop]: Abstraction has 12305 states and 19417 transitions. [2022-07-13 18:18:10,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:18:10,409 INFO L276 IsEmpty]: Start isEmpty. Operand 12305 states and 19417 transitions. [2022-07-13 18:18:10,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:18:10,424 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:10,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:18:10,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 18:18:10,424 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:10,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:10,425 INFO L85 PathProgramCache]: Analyzing trace with hash -240124536, now seen corresponding path program 1 times [2022-07-13 18:18:10,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:10,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695987831] [2022-07-13 18:18:10,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:10,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:10,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:18:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:10,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:18:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:18:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:18:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:10,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:10,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695987831] [2022-07-13 18:18:10,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695987831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:10,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:10,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:10,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331133761] [2022-07-13 18:18:10,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:10,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:10,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:10,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:10,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:10,574 INFO L87 Difference]: Start difference. First operand 12305 states and 19417 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:18:13,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:13,832 INFO L93 Difference]: Finished difference Result 29254 states and 46854 transitions. [2022-07-13 18:18:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 18:18:13,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:18:13,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:13,940 INFO L225 Difference]: With dead ends: 29254 [2022-07-13 18:18:13,955 INFO L226 Difference]: Without dead ends: 16970 [2022-07-13 18:18:14,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 18:18:14,017 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 1264 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 18:18:14,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 1613 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 18:18:14,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16970 states. [2022-07-13 18:18:15,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16970 to 12305. [2022-07-13 18:18:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12305 states, 11376 states have (on average 1.557049929676512) internal successors, (17713), 11409 states have internal predecessors, (17713), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-07-13 18:18:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12305 states to 12305 states and 19384 transitions. [2022-07-13 18:18:15,056 INFO L78 Accepts]: Start accepts. Automaton has 12305 states and 19384 transitions. Word has length 199 [2022-07-13 18:18:15,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:15,056 INFO L495 AbstractCegarLoop]: Abstraction has 12305 states and 19384 transitions. [2022-07-13 18:18:15,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:18:15,056 INFO L276 IsEmpty]: Start isEmpty. Operand 12305 states and 19384 transitions. [2022-07-13 18:18:15,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:18:15,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:15,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:18:15,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 18:18:15,075 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:15,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:15,075 INFO L85 PathProgramCache]: Analyzing trace with hash -150064246, now seen corresponding path program 1 times [2022-07-13 18:18:15,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:15,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131368446] [2022-07-13 18:18:15,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:15,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:15,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:18:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:15,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:18:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:15,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:18:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:18:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:15,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:15,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131368446] [2022-07-13 18:18:15,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131368446] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:15,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:15,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790797065] [2022-07-13 18:18:15,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:15,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:15,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:15,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:15,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:15,235 INFO L87 Difference]: Start difference. First operand 12305 states and 19384 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:18:21,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:21,858 INFO L93 Difference]: Finished difference Result 45113 states and 71884 transitions. [2022-07-13 18:18:21,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:18:21,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:18:21,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:22,059 INFO L225 Difference]: With dead ends: 45113 [2022-07-13 18:18:22,060 INFO L226 Difference]: Without dead ends: 32829 [2022-07-13 18:18:22,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-13 18:18:22,085 INFO L413 NwaCegarLoop]: 1266 mSDtfsCounter, 1794 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 4177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-13 18:18:22,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 3249 Invalid, 4177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4093 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-13 18:18:22,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32829 states. [2022-07-13 18:18:23,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32829 to 24275. [2022-07-13 18:18:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24275 states, 22450 states have (on average 1.5553229398663697) internal successors, (34917), 22515 states have internal predecessors, (34917), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2022-07-13 18:18:24,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24275 states to 24275 states and 38450 transitions. [2022-07-13 18:18:24,198 INFO L78 Accepts]: Start accepts. Automaton has 24275 states and 38450 transitions. Word has length 199 [2022-07-13 18:18:24,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:24,200 INFO L495 AbstractCegarLoop]: Abstraction has 24275 states and 38450 transitions. [2022-07-13 18:18:24,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:18:24,200 INFO L276 IsEmpty]: Start isEmpty. Operand 24275 states and 38450 transitions. [2022-07-13 18:18:24,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:18:24,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:24,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:18:24,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 18:18:24,276 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:24,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:24,277 INFO L85 PathProgramCache]: Analyzing trace with hash -839895736, now seen corresponding path program 1 times [2022-07-13 18:18:24,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:24,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834425379] [2022-07-13 18:18:24,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:24,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:24,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:18:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:24,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:18:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:24,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:18:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:24,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:18:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:24,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:24,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834425379] [2022-07-13 18:18:24,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834425379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:24,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:24,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:24,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240741711] [2022-07-13 18:18:24,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:24,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:24,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:24,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:24,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:24,508 INFO L87 Difference]: Start difference. First operand 24275 states and 38450 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:18:34,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:34,795 INFO L93 Difference]: Finished difference Result 88953 states and 142548 transitions. [2022-07-13 18:18:34,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:18:34,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:18:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:35,362 INFO L225 Difference]: With dead ends: 88953 [2022-07-13 18:18:35,363 INFO L226 Difference]: Without dead ends: 64699 [2022-07-13 18:18:35,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-13 18:18:35,488 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 1796 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4082 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 4169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-13 18:18:35,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 3242 Invalid, 4169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4082 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-13 18:18:35,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64699 states. [2022-07-13 18:18:40,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64699 to 48276. [2022-07-13 18:18:40,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48276 states, 44659 states have (on average 1.554333952842652) internal successors, (69415), 44788 states have internal predecessors, (69415), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2022-07-13 18:18:40,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48276 states to 48276 states and 77158 transitions. [2022-07-13 18:18:40,790 INFO L78 Accepts]: Start accepts. Automaton has 48276 states and 77158 transitions. Word has length 199 [2022-07-13 18:18:40,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:18:40,791 INFO L495 AbstractCegarLoop]: Abstraction has 48276 states and 77158 transitions. [2022-07-13 18:18:40,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:18:40,791 INFO L276 IsEmpty]: Start isEmpty. Operand 48276 states and 77158 transitions. [2022-07-13 18:18:40,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-13 18:18:40,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:18:40,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:18:40,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 18:18:40,936 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:18:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:18:40,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2047345610, now seen corresponding path program 1 times [2022-07-13 18:18:40,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:18:40,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484884531] [2022-07-13 18:18:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:18:40,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:18:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:40,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:18:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:41,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 18:18:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:41,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:18:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:41,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 18:18:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:41,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 18:18:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:18:41,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:18:41,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:18:41,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484884531] [2022-07-13 18:18:41,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484884531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:18:41,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:18:41,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:18:41,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183470513] [2022-07-13 18:18:41,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:18:41,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:18:41,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:18:41,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:18:41,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:18:41,142 INFO L87 Difference]: Start difference. First operand 48276 states and 77158 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 18:18:57,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:18:57,030 INFO L93 Difference]: Finished difference Result 176502 states and 285462 transitions. [2022-07-13 18:18:57,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:18:57,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-07-13 18:18:57,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:18:57,879 INFO L225 Difference]: With dead ends: 176502 [2022-07-13 18:18:57,879 INFO L226 Difference]: Without dead ends: 128247 [2022-07-13 18:18:58,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-13 18:18:58,005 INFO L413 NwaCegarLoop]: 1250 mSDtfsCounter, 1791 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4064 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 4151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-13 18:18:58,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 3233 Invalid, 4151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4064 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-13 18:18:58,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128247 states.