./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_15-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/locks/test_locks_15-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad13fcacd201ae20f6800b42387b8ec1153fb1bf63cee7a12ec23f4a302be7c7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 07:06:12,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 07:06:12,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 07:06:12,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 07:06:12,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 07:06:12,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 07:06:12,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 07:06:12,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 07:06:12,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 07:06:12,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 07:06:12,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 07:06:12,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 07:06:12,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 07:06:12,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 07:06:12,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 07:06:12,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 07:06:12,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 07:06:12,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 07:06:12,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 07:06:12,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 07:06:12,234 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 07:06:12,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 07:06:12,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 07:06:12,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 07:06:12,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 07:06:12,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 07:06:12,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 07:06:12,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 07:06:12,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 07:06:12,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 07:06:12,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 07:06:12,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 07:06:12,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 07:06:12,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 07:06:12,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 07:06:12,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 07:06:12,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 07:06:12,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 07:06:12,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 07:06:12,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 07:06:12,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 07:06:12,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 07:06:12,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-14 07:06:12,285 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 07:06:12,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 07:06:12,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 07:06:12,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 07:06:12,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 07:06:12,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 07:06:12,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 07:06:12,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 07:06:12,288 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 07:06:12,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 07:06:12,289 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 07:06:12,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 07:06:12,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 07:06:12,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 07:06:12,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 07:06:12,290 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-14 07:06:12,290 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-14 07:06:12,290 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-14 07:06:12,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 07:06:12,292 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 07:06:12,292 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 07:06:12,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 07:06:12,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 07:06:12,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 07:06:12,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 07:06:12,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:06:12,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 07:06:12,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 07:06:12,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 07:06:12,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 07:06:12,294 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad13fcacd201ae20f6800b42387b8ec1153fb1bf63cee7a12ec23f4a302be7c7 [2022-07-14 07:06:12,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 07:06:12,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 07:06:12,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 07:06:12,546 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 07:06:12,546 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 07:06:12,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_15-2.c [2022-07-14 07:06:12,598 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9270bd76/65c949145edd4255b1fd46e7bf734f7e/FLAG971fa64d2 [2022-07-14 07:06:13,033 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 07:06:13,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-2.c [2022-07-14 07:06:13,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9270bd76/65c949145edd4255b1fd46e7bf734f7e/FLAG971fa64d2 [2022-07-14 07:06:13,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9270bd76/65c949145edd4255b1fd46e7bf734f7e [2022-07-14 07:06:13,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 07:06:13,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 07:06:13,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 07:06:13,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 07:06:13,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 07:06:13,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a1b140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13, skipping insertion in model container [2022-07-14 07:06:13,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 07:06:13,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 07:06:13,659 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/locks/test_locks_15-2.c[5628,5641] [2022-07-14 07:06:13,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:06:13,681 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 07:06:13,722 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/locks/test_locks_15-2.c[5628,5641] [2022-07-14 07:06:13,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:06:13,746 INFO L208 MainTranslator]: Completed translation [2022-07-14 07:06:13,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13 WrapperNode [2022-07-14 07:06:13,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 07:06:13,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 07:06:13,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 07:06:13,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 07:06:13,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,805 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 193 [2022-07-14 07:06:13,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 07:06:13,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 07:06:13,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 07:06:13,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 07:06:13,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 07:06:13,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 07:06:13,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 07:06:13,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 07:06:13,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13" (1/1) ... [2022-07-14 07:06:13,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:06:13,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 07:06:13,883 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) [2022-07-14 07:06:13,885 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 [2022-07-14 07:06:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 07:06:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 07:06:13,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 07:06:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 07:06:14,005 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 07:06:14,007 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 07:06:14,298 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 07:06:14,304 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 07:06:14,304 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 07:06:14,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:06:14 BoogieIcfgContainer [2022-07-14 07:06:14,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 07:06:14,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 07:06:14,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 07:06:14,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 07:06:14,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 07:06:13" (1/3) ... [2022-07-14 07:06:14,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c785681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:06:14, skipping insertion in model container [2022-07-14 07:06:14,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:13" (2/3) ... [2022-07-14 07:06:14,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c785681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:06:14, skipping insertion in model container [2022-07-14 07:06:14,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:06:14" (3/3) ... [2022-07-14 07:06:14,314 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-2.c [2022-07-14 07:06:14,334 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 07:06:14,334 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-14 07:06:14,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 07:06:14,389 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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@13359719, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5824cf22 [2022-07-14 07:06:14,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-14 07:06:14,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 55 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:14,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 07:06:14,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:14,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 07:06:14,404 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:14,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:14,410 INFO L85 PathProgramCache]: Analyzing trace with hash 28959891, now seen corresponding path program 1 times [2022-07-14 07:06:14,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:14,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370946739] [2022-07-14 07:06:14,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:14,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:14,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:14,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370946739] [2022-07-14 07:06:14,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370946739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:14,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:14,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 07:06:14,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254488454] [2022-07-14 07:06:14,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:14,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 07:06:14,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:14,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 07:06:14,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 07:06:14,601 INFO L87 Difference]: Start difference. First operand has 56 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 55 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:14,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:14,621 INFO L93 Difference]: Finished difference Result 56 states and 100 transitions. [2022-07-14 07:06:14,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 07:06:14,623 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-14 07:06:14,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:14,631 INFO L225 Difference]: With dead ends: 56 [2022-07-14 07:06:14,631 INFO L226 Difference]: Without dead ends: 54 [2022-07-14 07:06:14,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 07:06:14,637 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:14,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:14,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-14 07:06:14,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-07-14 07:06:14,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.8846153846153846) internal successors, (98), 53 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:14,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2022-07-14 07:06:14,676 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 5 [2022-07-14 07:06:14,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:14,677 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2022-07-14 07:06:14,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:14,677 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2022-07-14 07:06:14,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 07:06:14,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:14,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 07:06:14,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 07:06:14,679 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:14,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:14,680 INFO L85 PathProgramCache]: Analyzing trace with hash 889700683, now seen corresponding path program 1 times [2022-07-14 07:06:14,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:14,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079740982] [2022-07-14 07:06:14,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:14,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:14,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:14,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079740982] [2022-07-14 07:06:14,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079740982] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:14,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:14,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 07:06:14,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832870897] [2022-07-14 07:06:14,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:14,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:14,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:14,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:14,760 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:14,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:14,771 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2022-07-14 07:06:14,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:14,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-14 07:06:14,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:14,773 INFO L225 Difference]: With dead ends: 53 [2022-07-14 07:06:14,773 INFO L226 Difference]: Without dead ends: 51 [2022-07-14 07:06:14,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:14,776 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:14,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:14,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-14 07:06:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-14 07:06:14,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.9) internal successors, (95), 50 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 95 transitions. [2022-07-14 07:06:14,785 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 95 transitions. Word has length 6 [2022-07-14 07:06:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:14,785 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 95 transitions. [2022-07-14 07:06:14,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2022-07-14 07:06:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-14 07:06:14,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:14,786 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] [2022-07-14 07:06:14,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 07:06:14,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:14,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:14,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1188560455, now seen corresponding path program 1 times [2022-07-14 07:06:14,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:14,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453152625] [2022-07-14 07:06:14,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:14,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:14,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:14,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:14,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453152625] [2022-07-14 07:06:14,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453152625] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:14,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:14,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:14,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81038487] [2022-07-14 07:06:14,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:14,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:14,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:14,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:14,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:14,841 INFO L87 Difference]: Start difference. First operand 51 states and 95 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:14,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:14,863 INFO L93 Difference]: Finished difference Result 99 states and 185 transitions. [2022-07-14 07:06:14,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:14,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-07-14 07:06:14,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:14,865 INFO L225 Difference]: With dead ends: 99 [2022-07-14 07:06:14,865 INFO L226 Difference]: Without dead ends: 99 [2022-07-14 07:06:14,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:14,867 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 73 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:14,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 187 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:14,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-07-14 07:06:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 67. [2022-07-14 07:06:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:14,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 126 transitions. [2022-07-14 07:06:14,879 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 126 transitions. Word has length 22 [2022-07-14 07:06:14,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:14,880 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 126 transitions. [2022-07-14 07:06:14,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:14,881 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 126 transitions. [2022-07-14 07:06:14,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-14 07:06:14,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:14,882 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] [2022-07-14 07:06:14,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 07:06:14,882 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:14,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:14,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1112262135, now seen corresponding path program 1 times [2022-07-14 07:06:14,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:14,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737678495] [2022-07-14 07:06:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:14,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:14,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:14,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:14,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737678495] [2022-07-14 07:06:14,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737678495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:14,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:14,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:14,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572713300] [2022-07-14 07:06:14,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:14,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:14,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:14,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:14,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:14,949 INFO L87 Difference]: Start difference. First operand 67 states and 126 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:14,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:14,979 INFO L93 Difference]: Finished difference Result 99 states and 183 transitions. [2022-07-14 07:06:14,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:14,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-07-14 07:06:14,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:14,981 INFO L225 Difference]: With dead ends: 99 [2022-07-14 07:06:14,984 INFO L226 Difference]: Without dead ends: 99 [2022-07-14 07:06:14,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:14,986 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 73 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:14,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 213 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:14,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-07-14 07:06:14,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2022-07-14 07:06:15,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.8958333333333333) internal successors, (182), 96 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 182 transitions. [2022-07-14 07:06:15,001 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 182 transitions. Word has length 22 [2022-07-14 07:06:15,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,002 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 182 transitions. [2022-07-14 07:06:15,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,002 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 182 transitions. [2022-07-14 07:06:15,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-14 07:06:15,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,003 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] [2022-07-14 07:06:15,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 07:06:15,007 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1809543287, now seen corresponding path program 1 times [2022-07-14 07:06:15,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:15,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712039298] [2022-07-14 07:06:15,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:15,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712039298] [2022-07-14 07:06:15,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712039298] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:15,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688552387] [2022-07-14 07:06:15,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:15,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:15,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,103 INFO L87 Difference]: Start difference. First operand 97 states and 182 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,126 INFO L93 Difference]: Finished difference Result 102 states and 185 transitions. [2022-07-14 07:06:15,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:15,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-07-14 07:06:15,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,128 INFO L225 Difference]: With dead ends: 102 [2022-07-14 07:06:15,128 INFO L226 Difference]: Without dead ends: 102 [2022-07-14 07:06:15,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,129 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 75 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 240 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-07-14 07:06:15,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2022-07-14 07:06:15,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.8585858585858586) internal successors, (184), 99 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 184 transitions. [2022-07-14 07:06:15,137 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 184 transitions. Word has length 23 [2022-07-14 07:06:15,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,137 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 184 transitions. [2022-07-14 07:06:15,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,137 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 184 transitions. [2022-07-14 07:06:15,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-14 07:06:15,138 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,138 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] [2022-07-14 07:06:15,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 07:06:15,139 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,140 INFO L85 PathProgramCache]: Analyzing trace with hash 120599545, now seen corresponding path program 1 times [2022-07-14 07:06:15,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:15,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917428437] [2022-07-14 07:06:15,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:15,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917428437] [2022-07-14 07:06:15,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917428437] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:15,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191856023] [2022-07-14 07:06:15,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:15,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:15,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:15,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,205 INFO L87 Difference]: Start difference. First operand 100 states and 184 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,232 INFO L93 Difference]: Finished difference Result 191 states and 354 transitions. [2022-07-14 07:06:15,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:15,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-07-14 07:06:15,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,234 INFO L225 Difference]: With dead ends: 191 [2022-07-14 07:06:15,235 INFO L226 Difference]: Without dead ends: 191 [2022-07-14 07:06:15,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,236 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 70 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 185 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-07-14 07:06:15,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 133. [2022-07-14 07:06:15,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.856060606060606) internal successors, (245), 132 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 245 transitions. [2022-07-14 07:06:15,248 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 245 transitions. Word has length 23 [2022-07-14 07:06:15,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,248 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 245 transitions. [2022-07-14 07:06:15,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,248 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 245 transitions. [2022-07-14 07:06:15,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-14 07:06:15,249 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,250 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] [2022-07-14 07:06:15,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 07:06:15,250 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1873545161, now seen corresponding path program 1 times [2022-07-14 07:06:15,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:15,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910276224] [2022-07-14 07:06:15,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:15,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910276224] [2022-07-14 07:06:15,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910276224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:15,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546236102] [2022-07-14 07:06:15,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:15,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:15,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:15,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,286 INFO L87 Difference]: Start difference. First operand 133 states and 245 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,297 INFO L93 Difference]: Finished difference Result 193 states and 352 transitions. [2022-07-14 07:06:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:15,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-07-14 07:06:15,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,303 INFO L225 Difference]: With dead ends: 193 [2022-07-14 07:06:15,303 INFO L226 Difference]: Without dead ends: 193 [2022-07-14 07:06:15,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,304 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 72 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 214 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-07-14 07:06:15,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 191. [2022-07-14 07:06:15,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 190 states have (on average 1.8473684210526315) internal successors, (351), 190 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 351 transitions. [2022-07-14 07:06:15,326 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 351 transitions. Word has length 23 [2022-07-14 07:06:15,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,326 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 351 transitions. [2022-07-14 07:06:15,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,327 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 351 transitions. [2022-07-14 07:06:15,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-14 07:06:15,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,328 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] [2022-07-14 07:06:15,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 07:06:15,328 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,329 INFO L85 PathProgramCache]: Analyzing trace with hash -556169332, now seen corresponding path program 1 times [2022-07-14 07:06:15,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:15,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96994044] [2022-07-14 07:06:15,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:15,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96994044] [2022-07-14 07:06:15,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96994044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:15,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26572587] [2022-07-14 07:06:15,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:15,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:15,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:15,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,385 INFO L87 Difference]: Start difference. First operand 191 states and 351 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,404 INFO L93 Difference]: Finished difference Result 195 states and 352 transitions. [2022-07-14 07:06:15,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:15,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-07-14 07:06:15,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,406 INFO L225 Difference]: With dead ends: 195 [2022-07-14 07:06:15,407 INFO L226 Difference]: Without dead ends: 195 [2022-07-14 07:06:15,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,408 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 74 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 236 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-07-14 07:06:15,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2022-07-14 07:06:15,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.828125) internal successors, (351), 192 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 351 transitions. [2022-07-14 07:06:15,420 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 351 transitions. Word has length 24 [2022-07-14 07:06:15,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,421 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 351 transitions. [2022-07-14 07:06:15,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,421 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 351 transitions. [2022-07-14 07:06:15,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-14 07:06:15,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,427 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] [2022-07-14 07:06:15,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 07:06:15,429 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2049854222, now seen corresponding path program 1 times [2022-07-14 07:06:15,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:15,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971237375] [2022-07-14 07:06:15,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:15,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971237375] [2022-07-14 07:06:15,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971237375] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:15,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647498467] [2022-07-14 07:06:15,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:15,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:15,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:15,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,480 INFO L87 Difference]: Start difference. First operand 193 states and 351 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,491 INFO L93 Difference]: Finished difference Result 375 states and 676 transitions. [2022-07-14 07:06:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:15,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-07-14 07:06:15,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,494 INFO L225 Difference]: With dead ends: 375 [2022-07-14 07:06:15,494 INFO L226 Difference]: Without dead ends: 375 [2022-07-14 07:06:15,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,495 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 72 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 187 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-07-14 07:06:15,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2022-07-14 07:06:15,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.814516129032258) internal successors, (675), 372 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 675 transitions. [2022-07-14 07:06:15,507 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 675 transitions. Word has length 24 [2022-07-14 07:06:15,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,508 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 675 transitions. [2022-07-14 07:06:15,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 675 transitions. [2022-07-14 07:06:15,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-14 07:06:15,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,509 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] [2022-07-14 07:06:15,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 07:06:15,510 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,510 INFO L85 PathProgramCache]: Analyzing trace with hash -250968368, now seen corresponding path program 1 times [2022-07-14 07:06:15,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:15,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522047033] [2022-07-14 07:06:15,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:15,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522047033] [2022-07-14 07:06:15,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522047033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:15,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214017483] [2022-07-14 07:06:15,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:15,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:15,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:15,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,575 INFO L87 Difference]: Start difference. First operand 373 states and 675 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,587 INFO L93 Difference]: Finished difference Result 479 states and 872 transitions. [2022-07-14 07:06:15,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:15,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-07-14 07:06:15,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,590 INFO L225 Difference]: With dead ends: 479 [2022-07-14 07:06:15,590 INFO L226 Difference]: Without dead ends: 479 [2022-07-14 07:06:15,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,591 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 67 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 260 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-07-14 07:06:15,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 373. [2022-07-14 07:06:15,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.803763440860215) internal successors, (671), 372 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 671 transitions. [2022-07-14 07:06:15,609 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 671 transitions. Word has length 24 [2022-07-14 07:06:15,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,610 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 671 transitions. [2022-07-14 07:06:15,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,610 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 671 transitions. [2022-07-14 07:06:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-14 07:06:15,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,616 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] [2022-07-14 07:06:15,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 07:06:15,616 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,617 INFO L85 PathProgramCache]: Analyzing trace with hash -878816148, now seen corresponding path program 1 times [2022-07-14 07:06:15,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:15,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930903994] [2022-07-14 07:06:15,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:15,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930903994] [2022-07-14 07:06:15,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930903994] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:15,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120414938] [2022-07-14 07:06:15,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:15,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:15,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:15,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,664 INFO L87 Difference]: Start difference. First operand 373 states and 671 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,677 INFO L93 Difference]: Finished difference Result 707 states and 1280 transitions. [2022-07-14 07:06:15,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:15,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-14 07:06:15,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,682 INFO L225 Difference]: With dead ends: 707 [2022-07-14 07:06:15,683 INFO L226 Difference]: Without dead ends: 707 [2022-07-14 07:06:15,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,684 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 64 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 181 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-14 07:06:15,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 513. [2022-07-14 07:06:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 512 states have (on average 1.779296875) internal successors, (911), 512 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 911 transitions. [2022-07-14 07:06:15,700 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 911 transitions. Word has length 25 [2022-07-14 07:06:15,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,701 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 911 transitions. [2022-07-14 07:06:15,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 911 transitions. [2022-07-14 07:06:15,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-14 07:06:15,702 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,703 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] [2022-07-14 07:06:15,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 07:06:15,705 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1422006442, now seen corresponding path program 1 times [2022-07-14 07:06:15,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:15,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270288855] [2022-07-14 07:06:15,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:15,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270288855] [2022-07-14 07:06:15,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270288855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:15,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997674264] [2022-07-14 07:06:15,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:15,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:15,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:15,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,736 INFO L87 Difference]: Start difference. First operand 513 states and 911 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,752 INFO L93 Difference]: Finished difference Result 731 states and 1292 transitions. [2022-07-14 07:06:15,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:15,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-14 07:06:15,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,756 INFO L225 Difference]: With dead ends: 731 [2022-07-14 07:06:15,756 INFO L226 Difference]: Without dead ends: 731 [2022-07-14 07:06:15,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,757 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 70 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 216 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-07-14 07:06:15,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 729. [2022-07-14 07:06:15,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 728 states have (on average 1.7733516483516483) internal successors, (1291), 728 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1291 transitions. [2022-07-14 07:06:15,783 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1291 transitions. Word has length 25 [2022-07-14 07:06:15,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,783 INFO L495 AbstractCegarLoop]: Abstraction has 729 states and 1291 transitions. [2022-07-14 07:06:15,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,783 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1291 transitions. [2022-07-14 07:06:15,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-14 07:06:15,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,786 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] [2022-07-14 07:06:15,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 07:06:15,787 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1473284061, now seen corresponding path program 1 times [2022-07-14 07:06:15,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:15,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761204672] [2022-07-14 07:06:15,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:15,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761204672] [2022-07-14 07:06:15,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761204672] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:15,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851588115] [2022-07-14 07:06:15,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:15,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:15,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:15,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,838 INFO L87 Difference]: Start difference. First operand 729 states and 1291 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,852 INFO L93 Difference]: Finished difference Result 743 states and 1300 transitions. [2022-07-14 07:06:15,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:15,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-07-14 07:06:15,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,856 INFO L225 Difference]: With dead ends: 743 [2022-07-14 07:06:15,857 INFO L226 Difference]: Without dead ends: 743 [2022-07-14 07:06:15,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,859 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 72 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 228 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-07-14 07:06:15,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 741. [2022-07-14 07:06:15,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 740 states have (on average 1.7554054054054054) internal successors, (1299), 740 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1299 transitions. [2022-07-14 07:06:15,886 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1299 transitions. Word has length 26 [2022-07-14 07:06:15,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,887 INFO L495 AbstractCegarLoop]: Abstraction has 741 states and 1299 transitions. [2022-07-14 07:06:15,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,888 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1299 transitions. [2022-07-14 07:06:15,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-14 07:06:15,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,889 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] [2022-07-14 07:06:15,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 07:06:15,889 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1132739493, now seen corresponding path program 1 times [2022-07-14 07:06:15,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:15,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065054697] [2022-07-14 07:06:15,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:15,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065054697] [2022-07-14 07:06:15,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065054697] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:15,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705645867] [2022-07-14 07:06:15,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:15,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:15,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:15,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,934 INFO L87 Difference]: Start difference. First operand 741 states and 1299 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,949 INFO L93 Difference]: Finished difference Result 1383 states and 2444 transitions. [2022-07-14 07:06:15,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:15,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-07-14 07:06:15,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,955 INFO L225 Difference]: With dead ends: 1383 [2022-07-14 07:06:15,955 INFO L226 Difference]: Without dead ends: 1383 [2022-07-14 07:06:15,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:15,956 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 61 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 179 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2022-07-14 07:06:15,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1029. [2022-07-14 07:06:15,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 1028 states have (on average 1.722762645914397) internal successors, (1771), 1028 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1771 transitions. [2022-07-14 07:06:15,979 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1771 transitions. Word has length 26 [2022-07-14 07:06:15,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,980 INFO L495 AbstractCegarLoop]: Abstraction has 1029 states and 1771 transitions. [2022-07-14 07:06:15,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:15,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1771 transitions. [2022-07-14 07:06:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-14 07:06:15,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,982 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] [2022-07-14 07:06:15,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 07:06:15,983 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,984 INFO L85 PathProgramCache]: Analyzing trace with hash -861405213, now seen corresponding path program 1 times [2022-07-14 07:06:15,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:15,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307307596] [2022-07-14 07:06:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:16,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:16,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:16,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307307596] [2022-07-14 07:06:16,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307307596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:16,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:16,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:16,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273424527] [2022-07-14 07:06:16,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:16,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:16,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:16,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:16,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,015 INFO L87 Difference]: Start difference. First operand 1029 states and 1771 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:16,032 INFO L93 Difference]: Finished difference Result 1447 states and 2484 transitions. [2022-07-14 07:06:16,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:16,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-07-14 07:06:16,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:16,038 INFO L225 Difference]: With dead ends: 1447 [2022-07-14 07:06:16,038 INFO L226 Difference]: Without dead ends: 1447 [2022-07-14 07:06:16,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,041 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 69 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:16,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 217 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:16,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2022-07-14 07:06:16,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1445. [2022-07-14 07:06:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.7195290858725762) internal successors, (2483), 1444 states have internal predecessors, (2483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2483 transitions. [2022-07-14 07:06:16,068 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2483 transitions. Word has length 26 [2022-07-14 07:06:16,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:16,068 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 2483 transitions. [2022-07-14 07:06:16,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2483 transitions. [2022-07-14 07:06:16,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-14 07:06:16,070 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:16,071 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] [2022-07-14 07:06:16,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 07:06:16,071 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:16,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:16,072 INFO L85 PathProgramCache]: Analyzing trace with hash 755399007, now seen corresponding path program 1 times [2022-07-14 07:06:16,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:16,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633933517] [2022-07-14 07:06:16,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:16,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:16,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:16,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633933517] [2022-07-14 07:06:16,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633933517] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:16,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:16,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:16,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853573930] [2022-07-14 07:06:16,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:16,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:16,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:16,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:16,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,106 INFO L87 Difference]: Start difference. First operand 1445 states and 2483 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:16,121 INFO L93 Difference]: Finished difference Result 1463 states and 2484 transitions. [2022-07-14 07:06:16,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:16,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-07-14 07:06:16,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:16,126 INFO L225 Difference]: With dead ends: 1463 [2022-07-14 07:06:16,126 INFO L226 Difference]: Without dead ends: 1463 [2022-07-14 07:06:16,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,127 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 71 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:16,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 224 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:16,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2022-07-14 07:06:16,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1461. [2022-07-14 07:06:16,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1460 states have (on average 1.7006849315068493) internal successors, (2483), 1460 states have internal predecessors, (2483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2483 transitions. [2022-07-14 07:06:16,153 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2483 transitions. Word has length 27 [2022-07-14 07:06:16,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:16,154 INFO L495 AbstractCegarLoop]: Abstraction has 1461 states and 2483 transitions. [2022-07-14 07:06:16,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2483 transitions. [2022-07-14 07:06:16,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-14 07:06:16,155 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:16,156 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] [2022-07-14 07:06:16,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-14 07:06:16,156 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:16,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:16,157 INFO L85 PathProgramCache]: Analyzing trace with hash -933544735, now seen corresponding path program 1 times [2022-07-14 07:06:16,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:16,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150558320] [2022-07-14 07:06:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:16,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:16,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:16,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150558320] [2022-07-14 07:06:16,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150558320] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:16,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:16,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:16,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138540468] [2022-07-14 07:06:16,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:16,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:16,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:16,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:16,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,186 INFO L87 Difference]: Start difference. First operand 1461 states and 2483 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:16,205 INFO L93 Difference]: Finished difference Result 2695 states and 4628 transitions. [2022-07-14 07:06:16,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:16,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-07-14 07:06:16,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:16,214 INFO L225 Difference]: With dead ends: 2695 [2022-07-14 07:06:16,214 INFO L226 Difference]: Without dead ends: 2695 [2022-07-14 07:06:16,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,215 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 58 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:16,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 177 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:16,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2022-07-14 07:06:16,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2053. [2022-07-14 07:06:16,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2053 states, 2052 states have (on average 1.662280701754386) internal successors, (3411), 2052 states have internal predecessors, (3411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 3411 transitions. [2022-07-14 07:06:16,259 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 3411 transitions. Word has length 27 [2022-07-14 07:06:16,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:16,259 INFO L495 AbstractCegarLoop]: Abstraction has 2053 states and 3411 transitions. [2022-07-14 07:06:16,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 3411 transitions. [2022-07-14 07:06:16,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-14 07:06:16,262 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:16,262 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] [2022-07-14 07:06:16,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 07:06:16,262 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:16,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:16,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1367277855, now seen corresponding path program 1 times [2022-07-14 07:06:16,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:16,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072132088] [2022-07-14 07:06:16,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:16,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:16,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:16,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:16,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072132088] [2022-07-14 07:06:16,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072132088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:16,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:16,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:16,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923323495] [2022-07-14 07:06:16,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:16,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:16,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:16,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:16,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,288 INFO L87 Difference]: Start difference. First operand 2053 states and 3411 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:16,307 INFO L93 Difference]: Finished difference Result 2855 states and 4740 transitions. [2022-07-14 07:06:16,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:16,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-07-14 07:06:16,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:16,317 INFO L225 Difference]: With dead ends: 2855 [2022-07-14 07:06:16,317 INFO L226 Difference]: Without dead ends: 2855 [2022-07-14 07:06:16,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,318 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 68 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:16,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 218 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:16,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2022-07-14 07:06:16,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2853. [2022-07-14 07:06:16,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2852 states have (on average 1.66164095371669) internal successors, (4739), 2852 states have internal predecessors, (4739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 4739 transitions. [2022-07-14 07:06:16,371 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 4739 transitions. Word has length 27 [2022-07-14 07:06:16,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:16,371 INFO L495 AbstractCegarLoop]: Abstraction has 2853 states and 4739 transitions. [2022-07-14 07:06:16,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 4739 transitions. [2022-07-14 07:06:16,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-14 07:06:16,374 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:16,374 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] [2022-07-14 07:06:16,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-14 07:06:16,374 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:16,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:16,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1125097720, now seen corresponding path program 1 times [2022-07-14 07:06:16,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:16,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371648663] [2022-07-14 07:06:16,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:16,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:16,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:16,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371648663] [2022-07-14 07:06:16,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371648663] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:16,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:16,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:16,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626709606] [2022-07-14 07:06:16,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:16,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:16,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:16,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:16,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,401 INFO L87 Difference]: Start difference. First operand 2853 states and 4739 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:16,420 INFO L93 Difference]: Finished difference Result 2887 states and 4740 transitions. [2022-07-14 07:06:16,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:16,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-14 07:06:16,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:16,430 INFO L225 Difference]: With dead ends: 2887 [2022-07-14 07:06:16,430 INFO L226 Difference]: Without dead ends: 2887 [2022-07-14 07:06:16,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,431 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 70 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:16,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 220 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:16,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2022-07-14 07:06:16,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2885. [2022-07-14 07:06:16,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2885 states, 2884 states have (on average 1.6432038834951457) internal successors, (4739), 2884 states have internal predecessors, (4739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2885 states to 2885 states and 4739 transitions. [2022-07-14 07:06:16,513 INFO L78 Accepts]: Start accepts. Automaton has 2885 states and 4739 transitions. Word has length 28 [2022-07-14 07:06:16,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:16,513 INFO L495 AbstractCegarLoop]: Abstraction has 2885 states and 4739 transitions. [2022-07-14 07:06:16,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2885 states and 4739 transitions. [2022-07-14 07:06:16,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-14 07:06:16,516 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:16,516 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] [2022-07-14 07:06:16,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-14 07:06:16,516 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:16,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:16,517 INFO L85 PathProgramCache]: Analyzing trace with hash -563846022, now seen corresponding path program 1 times [2022-07-14 07:06:16,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:16,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708692919] [2022-07-14 07:06:16,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:16,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:16,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:16,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:16,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708692919] [2022-07-14 07:06:16,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708692919] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:16,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:16,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:16,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570839812] [2022-07-14 07:06:16,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:16,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:16,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:16,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:16,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,540 INFO L87 Difference]: Start difference. First operand 2885 states and 4739 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:16,569 INFO L93 Difference]: Finished difference Result 5255 states and 8740 transitions. [2022-07-14 07:06:16,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:16,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-14 07:06:16,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:16,587 INFO L225 Difference]: With dead ends: 5255 [2022-07-14 07:06:16,587 INFO L226 Difference]: Without dead ends: 5255 [2022-07-14 07:06:16,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,589 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 55 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:16,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 175 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:16,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5255 states. [2022-07-14 07:06:16,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5255 to 4101. [2022-07-14 07:06:16,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4101 states, 4100 states have (on average 1.6007317073170733) internal successors, (6563), 4100 states have internal predecessors, (6563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 6563 transitions. [2022-07-14 07:06:16,678 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 6563 transitions. Word has length 28 [2022-07-14 07:06:16,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:16,679 INFO L495 AbstractCegarLoop]: Abstraction has 4101 states and 6563 transitions. [2022-07-14 07:06:16,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,679 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 6563 transitions. [2022-07-14 07:06:16,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-14 07:06:16,683 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:16,684 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] [2022-07-14 07:06:16,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-14 07:06:16,684 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:16,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:16,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1736976568, now seen corresponding path program 1 times [2022-07-14 07:06:16,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:16,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012331134] [2022-07-14 07:06:16,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:16,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:16,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:16,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:16,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012331134] [2022-07-14 07:06:16,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012331134] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:16,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:16,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:16,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196302280] [2022-07-14 07:06:16,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:16,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:16,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:16,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:16,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,731 INFO L87 Difference]: Start difference. First operand 4101 states and 6563 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:16,761 INFO L93 Difference]: Finished difference Result 5639 states and 9028 transitions. [2022-07-14 07:06:16,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:16,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-14 07:06:16,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:16,787 INFO L225 Difference]: With dead ends: 5639 [2022-07-14 07:06:16,787 INFO L226 Difference]: Without dead ends: 5639 [2022-07-14 07:06:16,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,790 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 67 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:16,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 219 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:16,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5639 states. [2022-07-14 07:06:16,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5639 to 5637. [2022-07-14 07:06:16,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5637 states, 5636 states have (on average 1.60166784953868) internal successors, (9027), 5636 states have internal predecessors, (9027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5637 states to 5637 states and 9027 transitions. [2022-07-14 07:06:16,909 INFO L78 Accepts]: Start accepts. Automaton has 5637 states and 9027 transitions. Word has length 28 [2022-07-14 07:06:16,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:16,909 INFO L495 AbstractCegarLoop]: Abstraction has 5637 states and 9027 transitions. [2022-07-14 07:06:16,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5637 states and 9027 transitions. [2022-07-14 07:06:16,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-14 07:06:16,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:16,917 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] [2022-07-14 07:06:16,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-14 07:06:16,917 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:16,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:16,918 INFO L85 PathProgramCache]: Analyzing trace with hash -299143724, now seen corresponding path program 1 times [2022-07-14 07:06:16,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:16,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759784326] [2022-07-14 07:06:16,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:16,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:16,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:16,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759784326] [2022-07-14 07:06:16,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759784326] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:16,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:16,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:16,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544548302] [2022-07-14 07:06:16,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:16,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:16,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:16,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:16,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:16,941 INFO L87 Difference]: Start difference. First operand 5637 states and 9027 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:16,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:16,996 INFO L93 Difference]: Finished difference Result 5703 states and 9028 transitions. [2022-07-14 07:06:16,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:16,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-07-14 07:06:16,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:17,007 INFO L225 Difference]: With dead ends: 5703 [2022-07-14 07:06:17,007 INFO L226 Difference]: Without dead ends: 5703 [2022-07-14 07:06:17,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:17,008 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 69 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:17,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 216 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:17,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5703 states. [2022-07-14 07:06:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5703 to 5701. [2022-07-14 07:06:17,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5701 states, 5700 states have (on average 1.5836842105263158) internal successors, (9027), 5700 states have internal predecessors, (9027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:17,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5701 states to 5701 states and 9027 transitions. [2022-07-14 07:06:17,112 INFO L78 Accepts]: Start accepts. Automaton has 5701 states and 9027 transitions. Word has length 29 [2022-07-14 07:06:17,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:17,112 INFO L495 AbstractCegarLoop]: Abstraction has 5701 states and 9027 transitions. [2022-07-14 07:06:17,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:17,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5701 states and 9027 transitions. [2022-07-14 07:06:17,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-14 07:06:17,118 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:17,118 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] [2022-07-14 07:06:17,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-14 07:06:17,118 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:17,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:17,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1988087466, now seen corresponding path program 1 times [2022-07-14 07:06:17,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:17,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020711550] [2022-07-14 07:06:17,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:17,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:17,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:17,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:17,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020711550] [2022-07-14 07:06:17,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020711550] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:17,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:17,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:17,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472273306] [2022-07-14 07:06:17,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:17,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:17,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:17,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:17,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:17,137 INFO L87 Difference]: Start difference. First operand 5701 states and 9027 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:17,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:17,179 INFO L93 Difference]: Finished difference Result 10247 states and 16452 transitions. [2022-07-14 07:06:17,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:17,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-07-14 07:06:17,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:17,199 INFO L225 Difference]: With dead ends: 10247 [2022-07-14 07:06:17,200 INFO L226 Difference]: Without dead ends: 10247 [2022-07-14 07:06:17,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:17,201 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 52 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:17,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 173 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10247 states. [2022-07-14 07:06:17,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10247 to 8197. [2022-07-14 07:06:17,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8197 states, 8196 states have (on average 1.5386774036115178) internal successors, (12611), 8196 states have internal predecessors, (12611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:17,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8197 states to 8197 states and 12611 transitions. [2022-07-14 07:06:17,358 INFO L78 Accepts]: Start accepts. Automaton has 8197 states and 12611 transitions. Word has length 29 [2022-07-14 07:06:17,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:17,358 INFO L495 AbstractCegarLoop]: Abstraction has 8197 states and 12611 transitions. [2022-07-14 07:06:17,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:17,359 INFO L276 IsEmpty]: Start isEmpty. Operand 8197 states and 12611 transitions. [2022-07-14 07:06:17,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-14 07:06:17,368 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:17,368 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] [2022-07-14 07:06:17,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-14 07:06:17,368 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:17,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:17,369 INFO L85 PathProgramCache]: Analyzing trace with hash 312735124, now seen corresponding path program 1 times [2022-07-14 07:06:17,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:17,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357321905] [2022-07-14 07:06:17,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:17,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:17,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:17,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:17,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357321905] [2022-07-14 07:06:17,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357321905] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:17,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:17,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:17,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20128221] [2022-07-14 07:06:17,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:17,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:17,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:17,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:17,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:17,386 INFO L87 Difference]: Start difference. First operand 8197 states and 12611 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:17,435 INFO L93 Difference]: Finished difference Result 11143 states and 17156 transitions. [2022-07-14 07:06:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:17,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-07-14 07:06:17,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:17,456 INFO L225 Difference]: With dead ends: 11143 [2022-07-14 07:06:17,456 INFO L226 Difference]: Without dead ends: 11143 [2022-07-14 07:06:17,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:17,457 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 66 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:17,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 220 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:17,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11143 states. [2022-07-14 07:06:17,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11143 to 11141. [2022-07-14 07:06:17,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11141 states, 11140 states have (on average 1.5399461400359067) internal successors, (17155), 11140 states have internal predecessors, (17155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:17,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11141 states to 11141 states and 17155 transitions. [2022-07-14 07:06:17,763 INFO L78 Accepts]: Start accepts. Automaton has 11141 states and 17155 transitions. Word has length 29 [2022-07-14 07:06:17,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:17,764 INFO L495 AbstractCegarLoop]: Abstraction has 11141 states and 17155 transitions. [2022-07-14 07:06:17,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:17,764 INFO L276 IsEmpty]: Start isEmpty. Operand 11141 states and 17155 transitions. [2022-07-14 07:06:17,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-14 07:06:17,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:17,774 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] [2022-07-14 07:06:17,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-14 07:06:17,774 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:17,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:17,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1500955187, now seen corresponding path program 1 times [2022-07-14 07:06:17,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:17,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045987116] [2022-07-14 07:06:17,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:17,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:17,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:17,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045987116] [2022-07-14 07:06:17,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045987116] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:17,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:17,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:17,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768702805] [2022-07-14 07:06:17,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:17,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:17,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:17,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:17,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:17,792 INFO L87 Difference]: Start difference. First operand 11141 states and 17155 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:17,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:17,828 INFO L93 Difference]: Finished difference Result 11271 states and 17156 transitions. [2022-07-14 07:06:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:17,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-14 07:06:17,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:17,847 INFO L225 Difference]: With dead ends: 11271 [2022-07-14 07:06:17,848 INFO L226 Difference]: Without dead ends: 11271 [2022-07-14 07:06:17,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:17,849 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 68 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:17,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 212 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11271 states. [2022-07-14 07:06:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11271 to 11269. [2022-07-14 07:06:18,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11269 states, 11268 states have (on average 1.522452964146255) internal successors, (17155), 11268 states have internal predecessors, (17155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:18,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11269 states to 11269 states and 17155 transitions. [2022-07-14 07:06:18,074 INFO L78 Accepts]: Start accepts. Automaton has 11269 states and 17155 transitions. Word has length 30 [2022-07-14 07:06:18,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:18,075 INFO L495 AbstractCegarLoop]: Abstraction has 11269 states and 17155 transitions. [2022-07-14 07:06:18,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:18,075 INFO L276 IsEmpty]: Start isEmpty. Operand 11269 states and 17155 transitions. [2022-07-14 07:06:18,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-14 07:06:18,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:18,085 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] [2022-07-14 07:06:18,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-14 07:06:18,085 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:18,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:18,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1105068367, now seen corresponding path program 1 times [2022-07-14 07:06:18,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:18,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581830168] [2022-07-14 07:06:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:18,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:18,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:18,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:18,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581830168] [2022-07-14 07:06:18,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581830168] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:18,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:18,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:18,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030980525] [2022-07-14 07:06:18,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:18,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:18,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:18,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:18,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:18,105 INFO L87 Difference]: Start difference. First operand 11269 states and 17155 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:18,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:18,154 INFO L93 Difference]: Finished difference Result 19975 states and 30852 transitions. [2022-07-14 07:06:18,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:18,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-14 07:06:18,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:18,260 INFO L225 Difference]: With dead ends: 19975 [2022-07-14 07:06:18,260 INFO L226 Difference]: Without dead ends: 19975 [2022-07-14 07:06:18,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:18,261 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 49 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:18,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 171 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:18,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19975 states. [2022-07-14 07:06:18,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19975 to 16389. [2022-07-14 07:06:18,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16389 states, 16388 states have (on average 1.476385159873078) internal successors, (24195), 16388 states have internal predecessors, (24195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16389 states to 16389 states and 24195 transitions. [2022-07-14 07:06:18,510 INFO L78 Accepts]: Start accepts. Automaton has 16389 states and 24195 transitions. Word has length 30 [2022-07-14 07:06:18,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:18,510 INFO L495 AbstractCegarLoop]: Abstraction has 16389 states and 24195 transitions. [2022-07-14 07:06:18,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 16389 states and 24195 transitions. [2022-07-14 07:06:18,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-14 07:06:18,526 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:18,526 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] [2022-07-14 07:06:18,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-14 07:06:18,527 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:18,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:18,527 INFO L85 PathProgramCache]: Analyzing trace with hash -889076339, now seen corresponding path program 1 times [2022-07-14 07:06:18,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:18,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840891054] [2022-07-14 07:06:18,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:18,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:18,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:18,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:18,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840891054] [2022-07-14 07:06:18,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840891054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:18,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:18,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:18,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612803343] [2022-07-14 07:06:18,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:18,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:18,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:18,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:18,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:18,551 INFO L87 Difference]: Start difference. First operand 16389 states and 24195 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:18,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:18,608 INFO L93 Difference]: Finished difference Result 22023 states and 32516 transitions. [2022-07-14 07:06:18,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:18,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-14 07:06:18,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:18,646 INFO L225 Difference]: With dead ends: 22023 [2022-07-14 07:06:18,646 INFO L226 Difference]: Without dead ends: 22023 [2022-07-14 07:06:18,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:18,647 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 65 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:18,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 221 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:18,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22023 states. [2022-07-14 07:06:18,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22023 to 22021. [2022-07-14 07:06:18,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22021 states, 22020 states have (on average 1.4766121707538602) internal successors, (32515), 22020 states have internal predecessors, (32515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22021 states to 22021 states and 32515 transitions. [2022-07-14 07:06:19,038 INFO L78 Accepts]: Start accepts. Automaton has 22021 states and 32515 transitions. Word has length 30 [2022-07-14 07:06:19,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:19,039 INFO L495 AbstractCegarLoop]: Abstraction has 22021 states and 32515 transitions. [2022-07-14 07:06:19,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:19,039 INFO L276 IsEmpty]: Start isEmpty. Operand 22021 states and 32515 transitions. [2022-07-14 07:06:19,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-14 07:06:19,058 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:19,058 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] [2022-07-14 07:06:19,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-14 07:06:19,059 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:19,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:19,061 INFO L85 PathProgramCache]: Analyzing trace with hash -102404535, now seen corresponding path program 1 times [2022-07-14 07:06:19,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:19,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570130818] [2022-07-14 07:06:19,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:19,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:19,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:19,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:19,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570130818] [2022-07-14 07:06:19,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570130818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:19,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:19,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:19,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329427446] [2022-07-14 07:06:19,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:19,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:19,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:19,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:19,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:19,098 INFO L87 Difference]: Start difference. First operand 22021 states and 32515 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:19,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:19,159 INFO L93 Difference]: Finished difference Result 22279 states and 32516 transitions. [2022-07-14 07:06:19,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:19,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-07-14 07:06:19,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:19,203 INFO L225 Difference]: With dead ends: 22279 [2022-07-14 07:06:19,204 INFO L226 Difference]: Without dead ends: 22279 [2022-07-14 07:06:19,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:19,205 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 67 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:19,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 208 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:19,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22279 states. [2022-07-14 07:06:19,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22279 to 22277. [2022-07-14 07:06:19,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22277 states, 22276 states have (on average 1.4596426647513019) internal successors, (32515), 22276 states have internal predecessors, (32515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22277 states to 22277 states and 32515 transitions. [2022-07-14 07:06:19,611 INFO L78 Accepts]: Start accepts. Automaton has 22277 states and 32515 transitions. Word has length 31 [2022-07-14 07:06:19,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:19,611 INFO L495 AbstractCegarLoop]: Abstraction has 22277 states and 32515 transitions. [2022-07-14 07:06:19,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:19,612 INFO L276 IsEmpty]: Start isEmpty. Operand 22277 states and 32515 transitions. [2022-07-14 07:06:19,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-14 07:06:19,635 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:19,635 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] [2022-07-14 07:06:19,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-14 07:06:19,635 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:19,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:19,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1791348277, now seen corresponding path program 1 times [2022-07-14 07:06:19,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:19,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391760166] [2022-07-14 07:06:19,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:19,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:19,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:19,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391760166] [2022-07-14 07:06:19,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391760166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:19,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:19,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:19,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471683745] [2022-07-14 07:06:19,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:19,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:19,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:19,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:19,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:19,653 INFO L87 Difference]: Start difference. First operand 22277 states and 32515 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:19,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:19,876 INFO L93 Difference]: Finished difference Result 38919 states and 57604 transitions. [2022-07-14 07:06:19,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:19,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-07-14 07:06:19,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:19,936 INFO L225 Difference]: With dead ends: 38919 [2022-07-14 07:06:19,936 INFO L226 Difference]: Without dead ends: 38919 [2022-07-14 07:06:19,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:19,937 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 46 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:19,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 169 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:19,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38919 states. [2022-07-14 07:06:20,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38919 to 32773. [2022-07-14 07:06:20,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32773 states, 32772 states have (on average 1.4139814475772001) internal successors, (46339), 32772 states have internal predecessors, (46339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:20,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32773 states to 32773 states and 46339 transitions. [2022-07-14 07:06:20,372 INFO L78 Accepts]: Start accepts. Automaton has 32773 states and 46339 transitions. Word has length 31 [2022-07-14 07:06:20,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:20,372 INFO L495 AbstractCegarLoop]: Abstraction has 32773 states and 46339 transitions. [2022-07-14 07:06:20,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:20,372 INFO L276 IsEmpty]: Start isEmpty. Operand 32773 states and 46339 transitions. [2022-07-14 07:06:20,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-14 07:06:20,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:20,393 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] [2022-07-14 07:06:20,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-14 07:06:20,394 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:20,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash 509474313, now seen corresponding path program 1 times [2022-07-14 07:06:20,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:20,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419262792] [2022-07-14 07:06:20,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:20,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:20,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:20,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419262792] [2022-07-14 07:06:20,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419262792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:20,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:20,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:20,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564776174] [2022-07-14 07:06:20,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:20,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:20,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:20,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:20,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:20,412 INFO L87 Difference]: Start difference. First operand 32773 states and 46339 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:20,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:20,520 INFO L93 Difference]: Finished difference Result 43527 states and 61444 transitions. [2022-07-14 07:06:20,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:20,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-07-14 07:06:20,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:20,574 INFO L225 Difference]: With dead ends: 43527 [2022-07-14 07:06:20,575 INFO L226 Difference]: Without dead ends: 43527 [2022-07-14 07:06:20,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:20,576 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 64 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:20,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 222 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43527 states. [2022-07-14 07:06:21,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43527 to 43525. [2022-07-14 07:06:21,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43525 states, 43524 states have (on average 1.4117038875103392) internal successors, (61443), 43524 states have internal predecessors, (61443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:21,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43525 states to 43525 states and 61443 transitions. [2022-07-14 07:06:21,432 INFO L78 Accepts]: Start accepts. Automaton has 43525 states and 61443 transitions. Word has length 31 [2022-07-14 07:06:21,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:21,433 INFO L495 AbstractCegarLoop]: Abstraction has 43525 states and 61443 transitions. [2022-07-14 07:06:21,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:21,433 INFO L276 IsEmpty]: Start isEmpty. Operand 43525 states and 61443 transitions. [2022-07-14 07:06:21,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-14 07:06:21,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:21,459 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] [2022-07-14 07:06:21,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-14 07:06:21,460 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:21,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:21,460 INFO L85 PathProgramCache]: Analyzing trace with hash 302993058, now seen corresponding path program 1 times [2022-07-14 07:06:21,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:21,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320321378] [2022-07-14 07:06:21,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:21,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:21,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:21,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:21,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320321378] [2022-07-14 07:06:21,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320321378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:21,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:21,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:21,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156138754] [2022-07-14 07:06:21,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:21,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:21,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:21,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:21,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:21,492 INFO L87 Difference]: Start difference. First operand 43525 states and 61443 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:21,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:21,601 INFO L93 Difference]: Finished difference Result 44039 states and 61444 transitions. [2022-07-14 07:06:21,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:21,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-07-14 07:06:21,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:21,650 INFO L225 Difference]: With dead ends: 44039 [2022-07-14 07:06:21,650 INFO L226 Difference]: Without dead ends: 44039 [2022-07-14 07:06:21,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:21,651 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 66 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:21,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 204 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:21,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44039 states. [2022-07-14 07:06:22,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44039 to 44037. [2022-07-14 07:06:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44037 states, 44036 states have (on average 1.395290217095104) internal successors, (61443), 44036 states have internal predecessors, (61443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:22,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44037 states to 44037 states and 61443 transitions. [2022-07-14 07:06:22,394 INFO L78 Accepts]: Start accepts. Automaton has 44037 states and 61443 transitions. Word has length 32 [2022-07-14 07:06:22,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:22,394 INFO L495 AbstractCegarLoop]: Abstraction has 44037 states and 61443 transitions. [2022-07-14 07:06:22,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:22,394 INFO L276 IsEmpty]: Start isEmpty. Operand 44037 states and 61443 transitions. [2022-07-14 07:06:22,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-14 07:06:22,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:22,415 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] [2022-07-14 07:06:22,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-14 07:06:22,415 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:22,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:22,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1385950684, now seen corresponding path program 1 times [2022-07-14 07:06:22,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:22,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358142492] [2022-07-14 07:06:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:22,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:22,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:22,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358142492] [2022-07-14 07:06:22,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358142492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:22,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:22,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:22,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423260240] [2022-07-14 07:06:22,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:22,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:22,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:22,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:22,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:22,435 INFO L87 Difference]: Start difference. First operand 44037 states and 61443 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:22,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:22,831 INFO L93 Difference]: Finished difference Result 86023 states and 116740 transitions. [2022-07-14 07:06:22,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:22,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-07-14 07:06:22,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:22,944 INFO L225 Difference]: With dead ends: 86023 [2022-07-14 07:06:22,944 INFO L226 Difference]: Without dead ends: 86023 [2022-07-14 07:06:22,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:22,945 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 64 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:22,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 187 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:22,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86023 states. [2022-07-14 07:06:23,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86023 to 86021. [2022-07-14 07:06:23,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86021 states, 86020 states have (on average 1.357114624505929) internal successors, (116739), 86020 states have internal predecessors, (116739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:24,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86021 states to 86021 states and 116739 transitions. [2022-07-14 07:06:24,057 INFO L78 Accepts]: Start accepts. Automaton has 86021 states and 116739 transitions. Word has length 32 [2022-07-14 07:06:24,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:24,058 INFO L495 AbstractCegarLoop]: Abstraction has 86021 states and 116739 transitions. [2022-07-14 07:06:24,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:24,058 INFO L276 IsEmpty]: Start isEmpty. Operand 86021 states and 116739 transitions. [2022-07-14 07:06:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-14 07:06:24,098 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:24,098 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] [2022-07-14 07:06:24,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-14 07:06:24,098 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:24,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:24,099 INFO L85 PathProgramCache]: Analyzing trace with hash 608194022, now seen corresponding path program 1 times [2022-07-14 07:06:24,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:24,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873947490] [2022-07-14 07:06:24,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:24,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:24,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:24,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:24,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873947490] [2022-07-14 07:06:24,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873947490] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:24,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:24,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:24,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91909080] [2022-07-14 07:06:24,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:24,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:24,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:24,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:24,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:24,116 INFO L87 Difference]: Start difference. First operand 86021 states and 116739 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:24,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:24,624 INFO L93 Difference]: Finished difference Result 96263 states and 134148 transitions. [2022-07-14 07:06:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:24,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-07-14 07:06:24,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:24,722 INFO L225 Difference]: With dead ends: 96263 [2022-07-14 07:06:24,722 INFO L226 Difference]: Without dead ends: 96263 [2022-07-14 07:06:24,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:24,723 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 43 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:24,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 220 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:24,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96263 states. [2022-07-14 07:06:25,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96263 to 86021. [2022-07-14 07:06:25,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86021 states, 86020 states have (on average 1.345210416182283) internal successors, (115715), 86020 states have internal predecessors, (115715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:25,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86021 states to 86021 states and 115715 transitions. [2022-07-14 07:06:25,989 INFO L78 Accepts]: Start accepts. Automaton has 86021 states and 115715 transitions. Word has length 32 [2022-07-14 07:06:25,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:25,989 INFO L495 AbstractCegarLoop]: Abstraction has 86021 states and 115715 transitions. [2022-07-14 07:06:25,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:25,990 INFO L276 IsEmpty]: Start isEmpty. Operand 86021 states and 115715 transitions. [2022-07-14 07:06:26,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-14 07:06:26,025 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:26,025 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] [2022-07-14 07:06:26,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-14 07:06:26,025 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:26,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:26,026 INFO L85 PathProgramCache]: Analyzing trace with hash -14583106, now seen corresponding path program 1 times [2022-07-14 07:06:26,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:26,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129937307] [2022-07-14 07:06:26,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:26,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:26,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:26,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129937307] [2022-07-14 07:06:26,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129937307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:26,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:26,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:26,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291658194] [2022-07-14 07:06:26,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:26,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:26,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:26,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:26,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:26,044 INFO L87 Difference]: Start difference. First operand 86021 states and 115715 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:26,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:26,366 INFO L93 Difference]: Finished difference Result 146439 states and 198660 transitions. [2022-07-14 07:06:26,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:26,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-07-14 07:06:26,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:26,536 INFO L225 Difference]: With dead ends: 146439 [2022-07-14 07:06:26,536 INFO L226 Difference]: Without dead ends: 146439 [2022-07-14 07:06:26,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:26,537 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 40 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:26,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 165 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:26,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146439 states. [2022-07-14 07:06:28,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146439 to 130053. [2022-07-14 07:06:28,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130053 states, 130052 states have (on average 1.3070694799003475) internal successors, (169987), 130052 states have internal predecessors, (169987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130053 states to 130053 states and 169987 transitions. [2022-07-14 07:06:28,415 INFO L78 Accepts]: Start accepts. Automaton has 130053 states and 169987 transitions. Word has length 33 [2022-07-14 07:06:28,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:28,415 INFO L495 AbstractCegarLoop]: Abstraction has 130053 states and 169987 transitions. [2022-07-14 07:06:28,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:28,415 INFO L276 IsEmpty]: Start isEmpty. Operand 130053 states and 169987 transitions. [2022-07-14 07:06:28,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-14 07:06:28,479 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:28,479 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] [2022-07-14 07:06:28,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-14 07:06:28,480 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:28,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:28,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2008727812, now seen corresponding path program 1 times [2022-07-14 07:06:28,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:28,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260448777] [2022-07-14 07:06:28,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:28,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:28,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:28,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:28,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260448777] [2022-07-14 07:06:28,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260448777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:28,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:28,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:28,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010401374] [2022-07-14 07:06:28,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:28,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:28,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:28,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:28,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:28,497 INFO L87 Difference]: Start difference. First operand 130053 states and 169987 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:29,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:29,281 INFO L93 Difference]: Finished difference Result 168967 states and 219140 transitions. [2022-07-14 07:06:29,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:29,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-07-14 07:06:29,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:29,456 INFO L225 Difference]: With dead ends: 168967 [2022-07-14 07:06:29,457 INFO L226 Difference]: Without dead ends: 168967 [2022-07-14 07:06:29,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:29,457 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 62 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:29,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:29,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168967 states. [2022-07-14 07:06:31,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168967 to 168965. [2022-07-14 07:06:31,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168965 states, 168964 states have (on average 1.2969567481830448) internal successors, (219139), 168964 states have internal predecessors, (219139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:31,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168965 states to 168965 states and 219139 transitions. [2022-07-14 07:06:31,612 INFO L78 Accepts]: Start accepts. Automaton has 168965 states and 219139 transitions. Word has length 33 [2022-07-14 07:06:31,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:31,612 INFO L495 AbstractCegarLoop]: Abstraction has 168965 states and 219139 transitions. [2022-07-14 07:06:31,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:31,613 INFO L276 IsEmpty]: Start isEmpty. Operand 168965 states and 219139 transitions. [2022-07-14 07:06:31,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:06:31,698 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:31,698 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] [2022-07-14 07:06:31,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-14 07:06:31,698 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:31,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:31,699 INFO L85 PathProgramCache]: Analyzing trace with hash -451860807, now seen corresponding path program 1 times [2022-07-14 07:06:31,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:31,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91602262] [2022-07-14 07:06:31,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:31,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:31,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:31,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91602262] [2022-07-14 07:06:31,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91602262] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:31,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:31,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:31,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041993698] [2022-07-14 07:06:31,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:31,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:31,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:31,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:31,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:31,716 INFO L87 Difference]: Start difference. First operand 168965 states and 219139 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:32,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:32,076 INFO L93 Difference]: Finished difference Result 172039 states and 221188 transitions. [2022-07-14 07:06:32,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:32,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-14 07:06:32,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:32,256 INFO L225 Difference]: With dead ends: 172039 [2022-07-14 07:06:32,256 INFO L226 Difference]: Without dead ends: 172039 [2022-07-14 07:06:32,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:32,257 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 64 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:32,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 196 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:32,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172039 states. [2022-07-14 07:06:34,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172039 to 172037. [2022-07-14 07:06:34,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172037 states, 172036 states have (on average 1.2857018298495664) internal successors, (221187), 172036 states have internal predecessors, (221187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:35,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172037 states to 172037 states and 221187 transitions. [2022-07-14 07:06:35,094 INFO L78 Accepts]: Start accepts. Automaton has 172037 states and 221187 transitions. Word has length 34 [2022-07-14 07:06:35,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:35,094 INFO L495 AbstractCegarLoop]: Abstraction has 172037 states and 221187 transitions. [2022-07-14 07:06:35,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:35,095 INFO L276 IsEmpty]: Start isEmpty. Operand 172037 states and 221187 transitions. [2022-07-14 07:06:35,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:06:35,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:35,198 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] [2022-07-14 07:06:35,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-14 07:06:35,198 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:35,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:35,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2140804549, now seen corresponding path program 1 times [2022-07-14 07:06:35,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:35,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604688855] [2022-07-14 07:06:35,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:35,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:35,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:35,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604688855] [2022-07-14 07:06:35,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604688855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:35,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:35,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:35,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831685728] [2022-07-14 07:06:35,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:35,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:35,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:35,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:35,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:35,217 INFO L87 Difference]: Start difference. First operand 172037 states and 221187 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:35,902 INFO L93 Difference]: Finished difference Result 286727 states and 368644 transitions. [2022-07-14 07:06:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:35,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-14 07:06:35,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:36,280 INFO L225 Difference]: With dead ends: 286727 [2022-07-14 07:06:36,280 INFO L226 Difference]: Without dead ends: 286727 [2022-07-14 07:06:36,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:36,281 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 37 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:36,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 163 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:36,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286727 states. [2022-07-14 07:06:39,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286727 to 262149. [2022-07-14 07:06:39,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262149 states, 262148 states have (on average 1.2499923707218823) internal successors, (327683), 262148 states have internal predecessors, (327683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:39,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262149 states to 262149 states and 327683 transitions. [2022-07-14 07:06:39,755 INFO L78 Accepts]: Start accepts. Automaton has 262149 states and 327683 transitions. Word has length 34 [2022-07-14 07:06:39,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:39,755 INFO L495 AbstractCegarLoop]: Abstraction has 262149 states and 327683 transitions. [2022-07-14 07:06:39,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:39,756 INFO L276 IsEmpty]: Start isEmpty. Operand 262149 states and 327683 transitions. [2022-07-14 07:06:39,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:06:39,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:39,903 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] [2022-07-14 07:06:39,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-14 07:06:39,903 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:39,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:39,904 INFO L85 PathProgramCache]: Analyzing trace with hash 160018041, now seen corresponding path program 1 times [2022-07-14 07:06:39,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:39,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898099670] [2022-07-14 07:06:39,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:39,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:39,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:39,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898099670] [2022-07-14 07:06:39,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898099670] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:39,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:39,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:39,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228491857] [2022-07-14 07:06:39,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:39,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:39,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:39,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:39,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:39,920 INFO L87 Difference]: Start difference. First operand 262149 states and 327683 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:41,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:41,553 INFO L93 Difference]: Finished difference Result 335879 states and 413700 transitions. [2022-07-14 07:06:41,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:41,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-14 07:06:41,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:41,973 INFO L225 Difference]: With dead ends: 335879 [2022-07-14 07:06:41,973 INFO L226 Difference]: Without dead ends: 335879 [2022-07-14 07:06:41,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:41,973 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 61 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:41,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 225 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:42,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335879 states. [2022-07-14 07:06:45,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335879 to 335877. [2022-07-14 07:06:45,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335877 states, 335876 states have (on average 1.2317015803451274) internal successors, (413699), 335876 states have internal predecessors, (413699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335877 states to 335877 states and 413699 transitions. [2022-07-14 07:06:46,556 INFO L78 Accepts]: Start accepts. Automaton has 335877 states and 413699 transitions. Word has length 34 [2022-07-14 07:06:46,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:46,556 INFO L495 AbstractCegarLoop]: Abstraction has 335877 states and 413699 transitions. [2022-07-14 07:06:46,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 335877 states and 413699 transitions. [2022-07-14 07:06:46,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:06:46,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:46,709 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] [2022-07-14 07:06:46,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-14 07:06:46,710 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:46,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:46,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1940215759, now seen corresponding path program 1 times [2022-07-14 07:06:46,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:46,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592521925] [2022-07-14 07:06:46,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:46,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:46,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:46,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592521925] [2022-07-14 07:06:46,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592521925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:46,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:46,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:46,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204555475] [2022-07-14 07:06:46,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:46,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:46,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:46,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:46,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:46,726 INFO L87 Difference]: Start difference. First operand 335877 states and 413699 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:47,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:47,406 INFO L93 Difference]: Finished difference Result 339975 states and 413700 transitions. [2022-07-14 07:06:47,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:47,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-14 07:06:47,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:48,517 INFO L225 Difference]: With dead ends: 339975 [2022-07-14 07:06:48,517 INFO L226 Difference]: Without dead ends: 339975 [2022-07-14 07:06:48,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:48,518 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 63 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:48,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 192 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:48,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339975 states.