/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:30:01,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:30:01,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:30:01,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 02:30:01,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 02:30:01,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 02:30:01,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 02:30:01,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 02:30:01,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 02:30:01,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 02:30:01,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 02:30:01,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 02:30:01,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:30:01,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:30:01,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:30:01,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:30:01,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:30:01,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:30:01,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:30:01,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:30:02,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:30:02,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:30:02,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:30:02,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:30:02,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 02:30:02,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 02:30:02,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 02:30:02,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 02:30:02,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 02:30:02,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 02:30:02,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 02:30:02,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 02:30:02,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 02:30:02,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 02:30:02,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 02:30:02,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 02:30:02,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 02:30:02,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 02:30:02,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:30:02,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:30:02,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:30:02,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 02:30:02,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:30:02,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:30:02,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:30:02,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:30:02,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:30:02,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:30:02,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:30:02,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:30:02,056 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:30:02,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:30:02,057 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:30:02,057 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:30:02,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:30:02,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:30:02,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:30:02,058 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:30:02,058 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:30:02,058 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:30:02,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:30:02,059 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:30:02,059 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:30:02,059 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:30:02,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:30:02,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:30:02,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:30:02,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:30:02,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:30:02,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:30:02,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:30:02,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:30:02,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:30:02,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:30:02,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:30:02,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:30:02,478 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:30:02,479 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:30:02,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c [2022-10-16 02:30:02,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d4574ef2/7257b17bc9d041f082b6c661cfee4a65/FLAGf8cea7b44 [2022-10-16 02:30:03,370 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:30:03,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c [2022-10-16 02:30:03,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d4574ef2/7257b17bc9d041f082b6c661cfee4a65/FLAGf8cea7b44 [2022-10-16 02:30:03,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d4574ef2/7257b17bc9d041f082b6c661cfee4a65 [2022-10-16 02:30:03,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:30:03,676 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:30:03,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:30:03,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:30:03,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:30:03,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:03" (1/1) ... [2022-10-16 02:30:03,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522f3b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:03, skipping insertion in model container [2022-10-16 02:30:03,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:03" (1/1) ... [2022-10-16 02:30:03,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:30:03,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:30:03,990 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/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c[11921,11934] [2022-10-16 02:30:03,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:30:04,006 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:30:04,154 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/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c[11921,11934] [2022-10-16 02:30:04,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:30:04,183 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:30:04,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04 WrapperNode [2022-10-16 02:30:04,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:30:04,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:30:04,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:30:04,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:30:04,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (1/1) ... [2022-10-16 02:30:04,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (1/1) ... [2022-10-16 02:30:04,265 INFO L138 Inliner]: procedures = 28, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 402 [2022-10-16 02:30:04,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:30:04,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:30:04,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:30:04,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:30:04,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (1/1) ... [2022-10-16 02:30:04,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (1/1) ... [2022-10-16 02:30:04,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (1/1) ... [2022-10-16 02:30:04,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (1/1) ... [2022-10-16 02:30:04,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (1/1) ... [2022-10-16 02:30:04,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (1/1) ... [2022-10-16 02:30:04,315 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (1/1) ... [2022-10-16 02:30:04,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (1/1) ... [2022-10-16 02:30:04,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:30:04,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:30:04,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:30:04,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:30:04,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (1/1) ... [2022-10-16 02:30:04,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:30:04,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:04,372 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) [2022-10-16 02:30:04,389 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 [2022-10-16 02:30:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:30:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2022-10-16 02:30:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2022-10-16 02:30:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 02:30:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 02:30:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2022-10-16 02:30:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2022-10-16 02:30:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2022-10-16 02:30:04,485 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2022-10-16 02:30:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2022-10-16 02:30:04,487 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2022-10-16 02:30:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 02:30:04,488 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 02:30:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:30:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:30:04,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:30:04,733 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:30:04,739 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:30:05,484 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:30:05,505 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:30:05,505 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 02:30:05,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:05 BoogieIcfgContainer [2022-10-16 02:30:05,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:30:05,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:30:05,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:30:05,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:30:05,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:30:03" (1/3) ... [2022-10-16 02:30:05,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ba1770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:05, skipping insertion in model container [2022-10-16 02:30:05,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:04" (2/3) ... [2022-10-16 02:30:05,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ba1770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:05, skipping insertion in model container [2022-10-16 02:30:05,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:05" (3/3) ... [2022-10-16 02:30:05,526 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c [2022-10-16 02:30:05,552 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:30:05,553 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:30:05,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:30:05,680 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@53943cef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:30:05,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:30:05,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 141 states have (on average 1.5957446808510638) internal successors, (225), 147 states have internal predecessors, (225), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-10-16 02:30:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 02:30:05,728 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:05,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:05,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:05,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:05,739 INFO L85 PathProgramCache]: Analyzing trace with hash 865264358, now seen corresponding path program 1 times [2022-10-16 02:30:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:05,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345720070] [2022-10-16 02:30:05,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:05,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:30:06,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:06,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345720070] [2022-10-16 02:30:06,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345720070] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:06,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:06,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:06,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160406165] [2022-10-16 02:30:06,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:06,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:06,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:06,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:06,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:06,139 INFO L87 Difference]: Start difference. First operand has 187 states, 141 states have (on average 1.5957446808510638) internal successors, (225), 147 states have internal predecessors, (225), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:30:06,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:06,258 INFO L93 Difference]: Finished difference Result 190 states and 301 transitions. [2022-10-16 02:30:06,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:06,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 02:30:06,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:06,280 INFO L225 Difference]: With dead ends: 190 [2022-10-16 02:30:06,280 INFO L226 Difference]: Without dead ends: 190 [2022-10-16 02:30:06,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:06,288 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 18 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:06,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 829 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:06,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-10-16 02:30:06,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2022-10-16 02:30:06,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 147 states have internal predecessors, (220), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-10-16 02:30:06,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 294 transitions. [2022-10-16 02:30:06,385 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 294 transitions. Word has length 15 [2022-10-16 02:30:06,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:06,386 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 294 transitions. [2022-10-16 02:30:06,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:30:06,391 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 294 transitions. [2022-10-16 02:30:06,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 02:30:06,397 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:06,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:06,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:30:06,398 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:06,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:06,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2098522709, now seen corresponding path program 1 times [2022-10-16 02:30:06,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:06,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696263913] [2022-10-16 02:30:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:30:06,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:06,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696263913] [2022-10-16 02:30:06,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696263913] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:06,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:06,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:06,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305511001] [2022-10-16 02:30:06,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:06,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:06,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:06,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:06,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:06,572 INFO L87 Difference]: Start difference. First operand 188 states and 294 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:30:06,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:06,630 INFO L93 Difference]: Finished difference Result 204 states and 315 transitions. [2022-10-16 02:30:06,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:06,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 02:30:06,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:06,635 INFO L225 Difference]: With dead ends: 204 [2022-10-16 02:30:06,635 INFO L226 Difference]: Without dead ends: 204 [2022-10-16 02:30:06,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:06,637 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 25 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:06,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 850 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:06,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-10-16 02:30:06,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 201. [2022-10-16 02:30:06,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 154 states have (on average 1.5194805194805194) internal successors, (234), 158 states have internal predecessors, (234), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-10-16 02:30:06,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 310 transitions. [2022-10-16 02:30:06,694 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 310 transitions. Word has length 16 [2022-10-16 02:30:06,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:06,695 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 310 transitions. [2022-10-16 02:30:06,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:30:06,696 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 310 transitions. [2022-10-16 02:30:06,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 02:30:06,701 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:06,702 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:06,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:30:06,703 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:06,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:06,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1245797425, now seen corresponding path program 1 times [2022-10-16 02:30:06,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:06,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969766945] [2022-10-16 02:30:06,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:06,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:30:06,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:06,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969766945] [2022-10-16 02:30:06,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969766945] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:06,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:06,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:30:06,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036524022] [2022-10-16 02:30:06,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:06,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:30:06,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:06,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:30:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:30:06,844 INFO L87 Difference]: Start difference. First operand 201 states and 310 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:30:06,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:06,867 INFO L93 Difference]: Finished difference Result 230 states and 355 transitions. [2022-10-16 02:30:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:30:06,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-10-16 02:30:06,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:06,872 INFO L225 Difference]: With dead ends: 230 [2022-10-16 02:30:06,872 INFO L226 Difference]: Without dead ends: 230 [2022-10-16 02:30:06,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:30:06,874 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 574 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 [2022-10-16 02:30:06,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 574 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:06,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-10-16 02:30:06,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 203. [2022-10-16 02:30:06,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 156 states have (on average 1.5128205128205128) internal successors, (236), 160 states have internal predecessors, (236), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-10-16 02:30:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 312 transitions. [2022-10-16 02:30:06,938 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 312 transitions. Word has length 24 [2022-10-16 02:30:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:06,938 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 312 transitions. [2022-10-16 02:30:06,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:30:06,939 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 312 transitions. [2022-10-16 02:30:06,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 02:30:06,941 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:06,941 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:06,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:30:06,942 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:06,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:06,943 INFO L85 PathProgramCache]: Analyzing trace with hash -826008672, now seen corresponding path program 1 times [2022-10-16 02:30:06,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:06,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102306136] [2022-10-16 02:30:06,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:06,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:30:07,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:07,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102306136] [2022-10-16 02:30:07,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102306136] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:07,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:07,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:07,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445938086] [2022-10-16 02:30:07,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:07,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:07,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:07,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:07,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:07,196 INFO L87 Difference]: Start difference. First operand 203 states and 312 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:30:07,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:07,277 INFO L93 Difference]: Finished difference Result 316 states and 499 transitions. [2022-10-16 02:30:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:07,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-10-16 02:30:07,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:07,282 INFO L225 Difference]: With dead ends: 316 [2022-10-16 02:30:07,282 INFO L226 Difference]: Without dead ends: 316 [2022-10-16 02:30:07,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:07,284 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 128 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:07,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1210 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:07,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-10-16 02:30:07,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 207. [2022-10-16 02:30:07,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 159 states have (on average 1.5031446540880504) internal successors, (239), 163 states have internal predecessors, (239), 38 states have call successors, (38), 8 states have call predecessors, (38), 9 states have return successors, (39), 39 states have call predecessors, (39), 38 states have call successors, (39) [2022-10-16 02:30:07,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 316 transitions. [2022-10-16 02:30:07,314 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 316 transitions. Word has length 32 [2022-10-16 02:30:07,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:07,314 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 316 transitions. [2022-10-16 02:30:07,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:30:07,315 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 316 transitions. [2022-10-16 02:30:07,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 02:30:07,316 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:07,317 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] [2022-10-16 02:30:07,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:30:07,317 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:07,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:07,318 INFO L85 PathProgramCache]: Analyzing trace with hash 718514085, now seen corresponding path program 1 times [2022-10-16 02:30:07,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:07,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058230103] [2022-10-16 02:30:07,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:07,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 02:30:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:30:07,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:07,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058230103] [2022-10-16 02:30:07,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058230103] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:07,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:07,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:30:07,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821555220] [2022-10-16 02:30:07,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:07,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:30:07,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:07,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:30:07,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:07,565 INFO L87 Difference]: Start difference. First operand 207 states and 316 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 02:30:07,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:07,664 INFO L93 Difference]: Finished difference Result 209 states and 318 transitions. [2022-10-16 02:30:07,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:30:07,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2022-10-16 02:30:07,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:07,676 INFO L225 Difference]: With dead ends: 209 [2022-10-16 02:30:07,682 INFO L226 Difference]: Without dead ends: 203 [2022-10-16 02:30:07,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:30:07,692 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 128 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:07,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1230 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:07,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-10-16 02:30:07,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2022-10-16 02:30:07,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 156 states have (on average 1.4807692307692308) internal successors, (231), 160 states have internal predecessors, (231), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-10-16 02:30:07,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 307 transitions. [2022-10-16 02:30:07,713 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 307 transitions. Word has length 35 [2022-10-16 02:30:07,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:07,714 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 307 transitions. [2022-10-16 02:30:07,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 02:30:07,714 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 307 transitions. [2022-10-16 02:30:07,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 02:30:07,716 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:07,716 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:07,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:30:07,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:07,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:07,718 INFO L85 PathProgramCache]: Analyzing trace with hash -775227043, now seen corresponding path program 1 times [2022-10-16 02:30:07,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:07,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133761723] [2022-10-16 02:30:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:07,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:30:07,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:07,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133761723] [2022-10-16 02:30:07,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133761723] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:07,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363752908] [2022-10-16 02:30:07,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:07,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:07,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:07,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:07,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 02:30:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 02:30:07,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:30:08,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:08,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:30:08,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363752908] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:08,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:08,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-10-16 02:30:08,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859427562] [2022-10-16 02:30:08,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:08,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:08,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:08,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:08,082 INFO L87 Difference]: Start difference. First operand 203 states and 307 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:30:08,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:08,135 INFO L93 Difference]: Finished difference Result 262 states and 398 transitions. [2022-10-16 02:30:08,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:08,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 35 [2022-10-16 02:30:08,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:08,138 INFO L225 Difference]: With dead ends: 262 [2022-10-16 02:30:08,139 INFO L226 Difference]: Without dead ends: 262 [2022-10-16 02:30:08,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:08,140 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 83 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:08,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 843 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:08,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-10-16 02:30:08,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 256. [2022-10-16 02:30:08,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 199 states have (on average 1.4572864321608041) internal successors, (290), 203 states have internal predecessors, (290), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-10-16 02:30:08,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 386 transitions. [2022-10-16 02:30:08,199 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 386 transitions. Word has length 35 [2022-10-16 02:30:08,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:08,199 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 386 transitions. [2022-10-16 02:30:08,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:30:08,200 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 386 transitions. [2022-10-16 02:30:08,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 02:30:08,202 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:08,202 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:08,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:08,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 02:30:08,416 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash 635559133, now seen corresponding path program 2 times [2022-10-16 02:30:08,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:08,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186129232] [2022-10-16 02:30:08,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:08,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,527 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-16 02:30:08,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:08,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186129232] [2022-10-16 02:30:08,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186129232] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:08,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:08,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:08,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835802679] [2022-10-16 02:30:08,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:08,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:08,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:08,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:08,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:08,531 INFO L87 Difference]: Start difference. First operand 256 states and 386 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:30:08,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:08,576 INFO L93 Difference]: Finished difference Result 295 states and 433 transitions. [2022-10-16 02:30:08,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:08,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-10-16 02:30:08,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:08,580 INFO L225 Difference]: With dead ends: 295 [2022-10-16 02:30:08,580 INFO L226 Difference]: Without dead ends: 295 [2022-10-16 02:30:08,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:08,582 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 24 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:08,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 842 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:08,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-10-16 02:30:08,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 292. [2022-10-16 02:30:08,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 231 states have (on average 1.4155844155844155) internal successors, (327), 235 states have internal predecessors, (327), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-10-16 02:30:08,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 429 transitions. [2022-10-16 02:30:08,599 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 429 transitions. Word has length 57 [2022-10-16 02:30:08,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:08,600 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 429 transitions. [2022-10-16 02:30:08,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:30:08,601 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 429 transitions. [2022-10-16 02:30:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 02:30:08,602 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:08,602 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:08,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:30:08,603 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:08,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:08,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1613173998, now seen corresponding path program 1 times [2022-10-16 02:30:08,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:08,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975611357] [2022-10-16 02:30:08,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:08,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,729 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-16 02:30:08,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:08,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975611357] [2022-10-16 02:30:08,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975611357] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:08,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:08,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:08,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142420216] [2022-10-16 02:30:08,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:08,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:08,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:08,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:08,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:08,732 INFO L87 Difference]: Start difference. First operand 292 states and 429 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:30:08,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:08,780 INFO L93 Difference]: Finished difference Result 301 states and 443 transitions. [2022-10-16 02:30:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:08,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-10-16 02:30:08,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:08,783 INFO L225 Difference]: With dead ends: 301 [2022-10-16 02:30:08,783 INFO L226 Difference]: Without dead ends: 301 [2022-10-16 02:30:08,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:08,785 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 19 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:08,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 828 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:08,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-10-16 02:30:08,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2022-10-16 02:30:08,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 237 states have (on average 1.4135021097046414) internal successors, (335), 241 states have internal predecessors, (335), 51 states have call successors, (51), 10 states have call predecessors, (51), 10 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-10-16 02:30:08,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 437 transitions. [2022-10-16 02:30:08,801 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 437 transitions. Word has length 57 [2022-10-16 02:30:08,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:08,801 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 437 transitions. [2022-10-16 02:30:08,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:30:08,802 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 437 transitions. [2022-10-16 02:30:08,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 02:30:08,803 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:08,803 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:08,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:30:08,804 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:08,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:08,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2106085808, now seen corresponding path program 1 times [2022-10-16 02:30:08,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:08,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549492744] [2022-10-16 02:30:08,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:08,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-16 02:30:08,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:08,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549492744] [2022-10-16 02:30:08,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549492744] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:08,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:08,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:08,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674722614] [2022-10-16 02:30:08,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:08,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:08,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:08,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:08,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:08,948 INFO L87 Difference]: Start difference. First operand 299 states and 437 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:30:08,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:08,974 INFO L93 Difference]: Finished difference Result 305 states and 443 transitions. [2022-10-16 02:30:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:08,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 75 [2022-10-16 02:30:08,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:08,978 INFO L225 Difference]: With dead ends: 305 [2022-10-16 02:30:08,978 INFO L226 Difference]: Without dead ends: 301 [2022-10-16 02:30:08,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:08,979 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 0 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:08,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1120 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:08,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-10-16 02:30:08,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2022-10-16 02:30:08,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 237 states have (on average 1.40084388185654) internal successors, (332), 241 states have internal predecessors, (332), 51 states have call successors, (51), 10 states have call predecessors, (51), 10 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-10-16 02:30:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 434 transitions. [2022-10-16 02:30:08,993 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 434 transitions. Word has length 75 [2022-10-16 02:30:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:08,994 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 434 transitions. [2022-10-16 02:30:08,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:30:08,994 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 434 transitions. [2022-10-16 02:30:08,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 02:30:08,996 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:08,996 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:08,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:30:08,996 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:08,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:08,997 INFO L85 PathProgramCache]: Analyzing trace with hash -2133976819, now seen corresponding path program 1 times [2022-10-16 02:30:08,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:08,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556058714] [2022-10-16 02:30:08,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:08,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,191 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-10-16 02:30:09,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:09,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556058714] [2022-10-16 02:30:09,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556058714] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:09,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:09,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:09,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649543398] [2022-10-16 02:30:09,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:09,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:09,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:09,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:09,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:09,194 INFO L87 Difference]: Start difference. First operand 299 states and 434 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:30:09,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:09,236 INFO L93 Difference]: Finished difference Result 343 states and 485 transitions. [2022-10-16 02:30:09,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:09,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 104 [2022-10-16 02:30:09,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:09,241 INFO L225 Difference]: With dead ends: 343 [2022-10-16 02:30:09,241 INFO L226 Difference]: Without dead ends: 343 [2022-10-16 02:30:09,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:09,243 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 25 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:09,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 842 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:09,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-10-16 02:30:09,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 340. [2022-10-16 02:30:09,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 274 states have (on average 1.364963503649635) internal successors, (374), 278 states have internal predecessors, (374), 54 states have call successors, (54), 11 states have call predecessors, (54), 11 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-10-16 02:30:09,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 482 transitions. [2022-10-16 02:30:09,264 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 482 transitions. Word has length 104 [2022-10-16 02:30:09,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:09,265 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 482 transitions. [2022-10-16 02:30:09,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:30:09,266 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 482 transitions. [2022-10-16 02:30:09,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:30:09,274 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:09,274 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:09,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:30:09,275 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:09,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:09,276 INFO L85 PathProgramCache]: Analyzing trace with hash -553299129, now seen corresponding path program 1 times [2022-10-16 02:30:09,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:09,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925867475] [2022-10-16 02:30:09,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:09,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,488 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-16 02:30:09,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:09,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925867475] [2022-10-16 02:30:09,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925867475] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:09,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:09,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:09,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738178788] [2022-10-16 02:30:09,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:09,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:09,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:09,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:09,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:09,492 INFO L87 Difference]: Start difference. First operand 340 states and 482 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:30:09,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:09,539 INFO L93 Difference]: Finished difference Result 334 states and 468 transitions. [2022-10-16 02:30:09,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:30:09,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 105 [2022-10-16 02:30:09,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:09,542 INFO L225 Difference]: With dead ends: 334 [2022-10-16 02:30:09,542 INFO L226 Difference]: Without dead ends: 334 [2022-10-16 02:30:09,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:09,544 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 15 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:09,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 801 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:09,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-10-16 02:30:09,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-10-16 02:30:09,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 269 states have (on average 1.345724907063197) internal successors, (362), 273 states have internal predecessors, (362), 53 states have call successors, (53), 11 states have call predecessors, (53), 11 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-10-16 02:30:09,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 468 transitions. [2022-10-16 02:30:09,561 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 468 transitions. Word has length 105 [2022-10-16 02:30:09,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:09,561 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 468 transitions. [2022-10-16 02:30:09,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:30:09,562 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 468 transitions. [2022-10-16 02:30:09,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-16 02:30:09,563 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:09,563 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:09,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:30:09,564 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:09,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:09,564 INFO L85 PathProgramCache]: Analyzing trace with hash -542802321, now seen corresponding path program 1 times [2022-10-16 02:30:09,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:09,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514380335] [2022-10-16 02:30:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:09,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,757 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-10-16 02:30:09,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:09,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514380335] [2022-10-16 02:30:09,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514380335] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:09,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:09,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:09,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460738104] [2022-10-16 02:30:09,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:09,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:09,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:09,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:09,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:09,761 INFO L87 Difference]: Start difference. First operand 334 states and 468 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:30:09,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:09,785 INFO L93 Difference]: Finished difference Result 340 states and 473 transitions. [2022-10-16 02:30:09,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:09,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 124 [2022-10-16 02:30:09,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:09,788 INFO L225 Difference]: With dead ends: 340 [2022-10-16 02:30:09,788 INFO L226 Difference]: Without dead ends: 336 [2022-10-16 02:30:09,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:09,789 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:09,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1105 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:09,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-10-16 02:30:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 334. [2022-10-16 02:30:09,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 269 states have (on average 1.3345724907063197) internal successors, (359), 273 states have internal predecessors, (359), 53 states have call successors, (53), 11 states have call predecessors, (53), 11 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-10-16 02:30:09,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 465 transitions. [2022-10-16 02:30:09,803 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 465 transitions. Word has length 124 [2022-10-16 02:30:09,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:09,804 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 465 transitions. [2022-10-16 02:30:09,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:30:09,804 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 465 transitions. [2022-10-16 02:30:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-10-16 02:30:09,806 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:09,806 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:09,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:30:09,807 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:09,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:09,807 INFO L85 PathProgramCache]: Analyzing trace with hash 299591502, now seen corresponding path program 1 times [2022-10-16 02:30:09,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:09,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647488058] [2022-10-16 02:30:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:09,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,980 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-10-16 02:30:09,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:09,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647488058] [2022-10-16 02:30:09,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647488058] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:09,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:09,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:09,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347501309] [2022-10-16 02:30:09,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:09,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:09,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:09,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:09,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:09,983 INFO L87 Difference]: Start difference. First operand 334 states and 465 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:30:10,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:10,034 INFO L93 Difference]: Finished difference Result 332 states and 461 transitions. [2022-10-16 02:30:10,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:30:10,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 157 [2022-10-16 02:30:10,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:10,038 INFO L225 Difference]: With dead ends: 332 [2022-10-16 02:30:10,038 INFO L226 Difference]: Without dead ends: 332 [2022-10-16 02:30:10,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:10,040 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 13 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:10,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 769 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:10,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-10-16 02:30:10,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2022-10-16 02:30:10,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 268 states have (on average 1.3320895522388059) internal successors, (357), 272 states have internal predecessors, (357), 52 states have call successors, (52), 11 states have call predecessors, (52), 11 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-10-16 02:30:10,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 461 transitions. [2022-10-16 02:30:10,054 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 461 transitions. Word has length 157 [2022-10-16 02:30:10,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:10,055 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 461 transitions. [2022-10-16 02:30:10,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:30:10,055 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 461 transitions. [2022-10-16 02:30:10,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-16 02:30:10,058 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:10,059 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:10,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:30:10,059 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:10,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:10,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1972532764, now seen corresponding path program 1 times [2022-10-16 02:30:10,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:10,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943906671] [2022-10-16 02:30:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:10,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-16 02:30:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,271 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-10-16 02:30:10,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:10,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943906671] [2022-10-16 02:30:10,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943906671] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:10,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:10,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:10,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364851155] [2022-10-16 02:30:10,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:10,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:10,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:10,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:10,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:10,275 INFO L87 Difference]: Start difference. First operand 332 states and 461 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 02:30:10,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:10,330 INFO L93 Difference]: Finished difference Result 335 states and 463 transitions. [2022-10-16 02:30:10,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:10,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 176 [2022-10-16 02:30:10,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:10,333 INFO L225 Difference]: With dead ends: 335 [2022-10-16 02:30:10,333 INFO L226 Difference]: Without dead ends: 315 [2022-10-16 02:30:10,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:10,334 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 35 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:10,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 750 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:10,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-10-16 02:30:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2022-10-16 02:30:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 254 states have (on average 1.3228346456692914) internal successors, (336), 258 states have internal predecessors, (336), 49 states have call successors, (49), 11 states have call predecessors, (49), 11 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-10-16 02:30:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 434 transitions. [2022-10-16 02:30:10,346 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 434 transitions. Word has length 176 [2022-10-16 02:30:10,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:10,347 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 434 transitions. [2022-10-16 02:30:10,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 02:30:10,347 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 434 transitions. [2022-10-16 02:30:10,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-16 02:30:10,350 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:10,351 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:10,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:30:10,351 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:10,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:10,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1695425980, now seen corresponding path program 1 times [2022-10-16 02:30:10,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:10,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505964376] [2022-10-16 02:30:10,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:10,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-16 02:30:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,557 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-10-16 02:30:10,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:10,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505964376] [2022-10-16 02:30:10,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505964376] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:10,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:10,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:10,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367573172] [2022-10-16 02:30:10,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:10,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:10,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:10,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:10,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:10,560 INFO L87 Difference]: Start difference. First operand 315 states and 434 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 02:30:10,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:10,607 INFO L93 Difference]: Finished difference Result 318 states and 436 transitions. [2022-10-16 02:30:10,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:10,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 178 [2022-10-16 02:30:10,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:10,611 INFO L225 Difference]: With dead ends: 318 [2022-10-16 02:30:10,611 INFO L226 Difference]: Without dead ends: 296 [2022-10-16 02:30:10,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:10,612 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 30 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:10,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 754 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:10,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-10-16 02:30:10,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2022-10-16 02:30:10,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 238 states have (on average 1.315126050420168) internal successors, (313), 242 states have internal predecessors, (313), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-10-16 02:30:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 405 transitions. [2022-10-16 02:30:10,624 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 405 transitions. Word has length 178 [2022-10-16 02:30:10,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:10,625 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 405 transitions. [2022-10-16 02:30:10,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 02:30:10,625 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 405 transitions. [2022-10-16 02:30:10,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-10-16 02:30:10,627 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:10,628 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:10,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:30:10,628 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:10,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:10,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1549963505, now seen corresponding path program 1 times [2022-10-16 02:30:10,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:10,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188232509] [2022-10-16 02:30:10,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:10,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 02:30:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,833 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-10-16 02:30:10,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:10,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188232509] [2022-10-16 02:30:10,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188232509] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:10,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:10,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:10,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141637614] [2022-10-16 02:30:10,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:10,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:10,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:10,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:10,836 INFO L87 Difference]: Start difference. First operand 296 states and 405 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 02:30:10,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:10,855 INFO L93 Difference]: Finished difference Result 300 states and 408 transitions. [2022-10-16 02:30:10,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:10,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 179 [2022-10-16 02:30:10,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:10,859 INFO L225 Difference]: With dead ends: 300 [2022-10-16 02:30:10,859 INFO L226 Difference]: Without dead ends: 296 [2022-10-16 02:30:10,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:10,860 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 0 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:10,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1084 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:10,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-10-16 02:30:10,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2022-10-16 02:30:10,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 238 states have (on average 1.2899159663865547) internal successors, (307), 242 states have internal predecessors, (307), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-10-16 02:30:10,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 399 transitions. [2022-10-16 02:30:10,872 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 399 transitions. Word has length 179 [2022-10-16 02:30:10,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:10,872 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 399 transitions. [2022-10-16 02:30:10,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 02:30:10,873 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 399 transitions. [2022-10-16 02:30:10,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-10-16 02:30:10,876 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:10,876 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:10,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:30:10,877 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:10,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:10,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1387810453, now seen corresponding path program 1 times [2022-10-16 02:30:10,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:10,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225541089] [2022-10-16 02:30:10,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:10,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-10-16 02:30:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,087 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-10-16 02:30:11,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:11,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225541089] [2022-10-16 02:30:11,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225541089] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:11,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059455294] [2022-10-16 02:30:11,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:11,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:11,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:11,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:11,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 02:30:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:30:11,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-10-16 02:30:11,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:11,515 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-10-16 02:30:11,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059455294] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:11,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 02:30:11,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 5 [2022-10-16 02:30:11,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601634562] [2022-10-16 02:30:11,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:11,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:11,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:11,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:11,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:11,518 INFO L87 Difference]: Start difference. First operand 296 states and 399 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:11,552 INFO L93 Difference]: Finished difference Result 319 states and 428 transitions. [2022-10-16 02:30:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:30:11,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 186 [2022-10-16 02:30:11,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:11,555 INFO L225 Difference]: With dead ends: 319 [2022-10-16 02:30:11,555 INFO L226 Difference]: Without dead ends: 275 [2022-10-16 02:30:11,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:11,556 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 35 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:11,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 515 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:11,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-10-16 02:30:11,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2022-10-16 02:30:11,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 220 states have (on average 1.2818181818181817) internal successors, (282), 224 states have internal predecessors, (282), 43 states have call successors, (43), 11 states have call predecessors, (43), 11 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-10-16 02:30:11,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 368 transitions. [2022-10-16 02:30:11,567 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 368 transitions. Word has length 186 [2022-10-16 02:30:11,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:11,568 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 368 transitions. [2022-10-16 02:30:11,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:11,568 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 368 transitions. [2022-10-16 02:30:11,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-10-16 02:30:11,571 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:11,571 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:11,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:11,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 02:30:11,787 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:11,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:11,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1691500706, now seen corresponding path program 1 times [2022-10-16 02:30:11,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:11,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928431000] [2022-10-16 02:30:11,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:11,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:11,981 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-10-16 02:30:11,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:11,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928431000] [2022-10-16 02:30:11,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928431000] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:11,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:11,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:11,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524066511] [2022-10-16 02:30:11,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:11,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:11,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:11,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:11,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:11,984 INFO L87 Difference]: Start difference. First operand 275 states and 368 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-16 02:30:12,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:12,010 INFO L93 Difference]: Finished difference Result 281 states and 374 transitions. [2022-10-16 02:30:12,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:12,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 210 [2022-10-16 02:30:12,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:12,013 INFO L225 Difference]: With dead ends: 281 [2022-10-16 02:30:12,013 INFO L226 Difference]: Without dead ends: 281 [2022-10-16 02:30:12,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:12,014 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 6 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:12,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 794 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:12,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-10-16 02:30:12,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 279. [2022-10-16 02:30:12,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 223 states have (on average 1.2780269058295963) internal successors, (285), 227 states have internal predecessors, (285), 43 states have call successors, (43), 12 states have call predecessors, (43), 12 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-10-16 02:30:12,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 371 transitions. [2022-10-16 02:30:12,025 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 371 transitions. Word has length 210 [2022-10-16 02:30:12,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:12,028 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 371 transitions. [2022-10-16 02:30:12,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-16 02:30:12,028 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 371 transitions. [2022-10-16 02:30:12,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-10-16 02:30:12,033 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:12,033 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:12,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:30:12,033 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:12,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:12,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1534350887, now seen corresponding path program 1 times [2022-10-16 02:30:12,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:12,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689630878] [2022-10-16 02:30:12,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:12,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-10-16 02:30:12,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:12,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689630878] [2022-10-16 02:30:12,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689630878] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:12,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127600817] [2022-10-16 02:30:12,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:12,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:12,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:12,328 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:12,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 02:30:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:30:12,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:12,541 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-10-16 02:30:12,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:12,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127600817] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:12,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:12,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 02:30:12,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144506576] [2022-10-16 02:30:12,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:12,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:12,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:12,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:12,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:12,547 INFO L87 Difference]: Start difference. First operand 279 states and 371 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 02:30:12,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:12,583 INFO L93 Difference]: Finished difference Result 286 states and 377 transitions. [2022-10-16 02:30:12,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:12,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 219 [2022-10-16 02:30:12,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:12,586 INFO L225 Difference]: With dead ends: 286 [2022-10-16 02:30:12,587 INFO L226 Difference]: Without dead ends: 286 [2022-10-16 02:30:12,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:12,588 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 7 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:12,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 799 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:12,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-10-16 02:30:12,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 284. [2022-10-16 02:30:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 227 states have (on average 1.2731277533039647) internal successors, (289), 231 states have internal predecessors, (289), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-10-16 02:30:12,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 375 transitions. [2022-10-16 02:30:12,599 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 375 transitions. Word has length 219 [2022-10-16 02:30:12,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:12,602 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 375 transitions. [2022-10-16 02:30:12,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 02:30:12,603 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 375 transitions. [2022-10-16 02:30:12,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-10-16 02:30:12,608 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:12,608 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:12,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:12,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:12,823 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:12,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1751819574, now seen corresponding path program 1 times [2022-10-16 02:30:12,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:12,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741970830] [2022-10-16 02:30:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:12,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:12,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2022-10-16 02:30:13,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:13,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741970830] [2022-10-16 02:30:13,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741970830] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:13,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458180814] [2022-10-16 02:30:13,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:13,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:13,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:13,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:13,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 02:30:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:30:13,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:13,301 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2022-10-16 02:30:13,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:13,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458180814] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:13,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:13,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 02:30:13,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535224924] [2022-10-16 02:30:13,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:13,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:13,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:13,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:13,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:13,306 INFO L87 Difference]: Start difference. First operand 284 states and 375 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 02:30:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:13,333 INFO L93 Difference]: Finished difference Result 283 states and 370 transitions. [2022-10-16 02:30:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:30:13,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 229 [2022-10-16 02:30:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:13,335 INFO L225 Difference]: With dead ends: 283 [2022-10-16 02:30:13,336 INFO L226 Difference]: Without dead ends: 283 [2022-10-16 02:30:13,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:13,337 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 7 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:13,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 785 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:13,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-10-16 02:30:13,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2022-10-16 02:30:13,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 227 states have (on average 1.2599118942731278) internal successors, (286), 230 states have internal predecessors, (286), 42 states have call successors, (42), 13 states have call predecessors, (42), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-10-16 02:30:13,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 370 transitions. [2022-10-16 02:30:13,346 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 370 transitions. Word has length 229 [2022-10-16 02:30:13,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:13,347 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 370 transitions. [2022-10-16 02:30:13,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 02:30:13,348 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 370 transitions. [2022-10-16 02:30:13,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-10-16 02:30:13,351 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:13,351 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:13,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:13,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:13,565 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:13,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:13,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1715972811, now seen corresponding path program 1 times [2022-10-16 02:30:13,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:13,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28289796] [2022-10-16 02:30:13,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:13,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,835 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-10-16 02:30:13,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:13,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28289796] [2022-10-16 02:30:13,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28289796] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:13,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:13,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:13,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892678550] [2022-10-16 02:30:13,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:13,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:13,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:13,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:13,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:13,838 INFO L87 Difference]: Start difference. First operand 283 states and 370 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 02:30:14,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:14,099 INFO L93 Difference]: Finished difference Result 325 states and 439 transitions. [2022-10-16 02:30:14,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:30:14,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 239 [2022-10-16 02:30:14,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:14,103 INFO L225 Difference]: With dead ends: 325 [2022-10-16 02:30:14,103 INFO L226 Difference]: Without dead ends: 325 [2022-10-16 02:30:14,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:14,104 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 181 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:14,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 629 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:30:14,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-10-16 02:30:14,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 282. [2022-10-16 02:30:14,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 227 states have (on average 1.2555066079295154) internal successors, (285), 229 states have internal predecessors, (285), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-16 02:30:14,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 367 transitions. [2022-10-16 02:30:14,115 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 367 transitions. Word has length 239 [2022-10-16 02:30:14,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:14,116 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 367 transitions. [2022-10-16 02:30:14,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 02:30:14,117 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 367 transitions. [2022-10-16 02:30:14,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-10-16 02:30:14,120 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:14,121 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:14,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:30:14,121 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:14,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:14,122 INFO L85 PathProgramCache]: Analyzing trace with hash -408187797, now seen corresponding path program 1 times [2022-10-16 02:30:14,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:14,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437816121] [2022-10-16 02:30:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:14,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,538 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-10-16 02:30:14,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:14,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437816121] [2022-10-16 02:30:14,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437816121] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:14,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:14,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:14,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15489661] [2022-10-16 02:30:14,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:14,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:14,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:14,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:14,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:14,541 INFO L87 Difference]: Start difference. First operand 282 states and 367 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 02:30:15,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:15,189 INFO L93 Difference]: Finished difference Result 513 states and 674 transitions. [2022-10-16 02:30:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 02:30:15,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 240 [2022-10-16 02:30:15,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:15,193 INFO L225 Difference]: With dead ends: 513 [2022-10-16 02:30:15,194 INFO L226 Difference]: Without dead ends: 513 [2022-10-16 02:30:15,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:30:15,198 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 433 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:15,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 792 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 02:30:15,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-10-16 02:30:15,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 504. [2022-10-16 02:30:15,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 402 states have (on average 1.308457711442786) internal successors, (526), 404 states have internal predecessors, (526), 70 states have call successors, (70), 31 states have call predecessors, (70), 31 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-10-16 02:30:15,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 666 transitions. [2022-10-16 02:30:15,213 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 666 transitions. Word has length 240 [2022-10-16 02:30:15,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:15,214 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 666 transitions. [2022-10-16 02:30:15,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 02:30:15,214 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 666 transitions. [2022-10-16 02:30:15,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-10-16 02:30:15,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:15,217 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:15,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 02:30:15,217 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:15,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:15,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1104595202, now seen corresponding path program 1 times [2022-10-16 02:30:15,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:15,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110911226] [2022-10-16 02:30:15,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:15,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-10-16 02:30:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-10-16 02:30:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-10-16 02:30:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-10-16 02:30:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,539 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-10-16 02:30:15,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:15,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110911226] [2022-10-16 02:30:15,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110911226] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:15,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:15,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:15,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463286202] [2022-10-16 02:30:15,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:15,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:15,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:15,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:15,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:15,543 INFO L87 Difference]: Start difference. First operand 504 states and 666 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-10-16 02:30:15,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:15,985 INFO L93 Difference]: Finished difference Result 807 states and 1086 transitions. [2022-10-16 02:30:15,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:15,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 273 [2022-10-16 02:30:15,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:15,992 INFO L225 Difference]: With dead ends: 807 [2022-10-16 02:30:15,992 INFO L226 Difference]: Without dead ends: 807 [2022-10-16 02:30:15,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:15,993 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 219 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:15,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 592 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:30:15,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2022-10-16 02:30:16,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 638. [2022-10-16 02:30:16,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 511 states have (on average 1.3150684931506849) internal successors, (672), 517 states have internal predecessors, (672), 85 states have call successors, (85), 41 states have call predecessors, (85), 41 states have return successors, (85), 81 states have call predecessors, (85), 85 states have call successors, (85) [2022-10-16 02:30:16,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 842 transitions. [2022-10-16 02:30:16,025 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 842 transitions. Word has length 273 [2022-10-16 02:30:16,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:16,025 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 842 transitions. [2022-10-16 02:30:16,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-10-16 02:30:16,026 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 842 transitions. [2022-10-16 02:30:16,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-10-16 02:30:16,030 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:16,031 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:16,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 02:30:16,032 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:16,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:16,033 INFO L85 PathProgramCache]: Analyzing trace with hash 48015052, now seen corresponding path program 1 times [2022-10-16 02:30:16,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:16,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304803199] [2022-10-16 02:30:16,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:16,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-10-16 02:30:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-10-16 02:30:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-10-16 02:30:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-10-16 02:30:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,377 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-10-16 02:30:16,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:16,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304803199] [2022-10-16 02:30:16,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304803199] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:16,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:16,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:16,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161480476] [2022-10-16 02:30:16,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:16,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:16,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:16,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:16,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:16,382 INFO L87 Difference]: Start difference. First operand 638 states and 842 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-10-16 02:30:16,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:16,852 INFO L93 Difference]: Finished difference Result 1013 states and 1354 transitions. [2022-10-16 02:30:16,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:16,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 274 [2022-10-16 02:30:16,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:16,859 INFO L225 Difference]: With dead ends: 1013 [2022-10-16 02:30:16,859 INFO L226 Difference]: Without dead ends: 1013 [2022-10-16 02:30:16,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:16,861 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 222 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:16,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 625 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:30:16,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2022-10-16 02:30:16,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 999. [2022-10-16 02:30:16,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 792 states have (on average 1.3396464646464648) internal successors, (1061), 806 states have internal predecessors, (1061), 139 states have call successors, (139), 67 states have call predecessors, (139), 67 states have return successors, (139), 129 states have call predecessors, (139), 139 states have call successors, (139) [2022-10-16 02:30:16,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1339 transitions. [2022-10-16 02:30:16,906 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1339 transitions. Word has length 274 [2022-10-16 02:30:16,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:16,908 INFO L495 AbstractCegarLoop]: Abstraction has 999 states and 1339 transitions. [2022-10-16 02:30:16,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-10-16 02:30:16,909 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1339 transitions. [2022-10-16 02:30:16,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-10-16 02:30:16,911 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:16,912 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:16,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 02:30:16,912 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:16,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:16,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1479631843, now seen corresponding path program 1 times [2022-10-16 02:30:16,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:16,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393992607] [2022-10-16 02:30:16,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:16,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 02:30:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-10-16 02:30:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-10-16 02:30:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,162 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-10-16 02:30:17,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:17,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393992607] [2022-10-16 02:30:17,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393992607] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:17,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:17,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:17,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234105736] [2022-10-16 02:30:17,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:17,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:17,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:17,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:17,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:17,166 INFO L87 Difference]: Start difference. First operand 999 states and 1339 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 02:30:17,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:17,651 INFO L93 Difference]: Finished difference Result 1601 states and 2176 transitions. [2022-10-16 02:30:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:17,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 275 [2022-10-16 02:30:17,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:17,669 INFO L225 Difference]: With dead ends: 1601 [2022-10-16 02:30:17,669 INFO L226 Difference]: Without dead ends: 1601 [2022-10-16 02:30:17,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:17,670 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 224 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:17,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 657 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:30:17,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-10-16 02:30:17,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1575. [2022-10-16 02:30:17,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1236 states have (on average 1.3632686084142396) internal successors, (1685), 1264 states have internal predecessors, (1685), 231 states have call successors, (231), 107 states have call predecessors, (231), 107 states have return successors, (231), 211 states have call predecessors, (231), 231 states have call successors, (231) [2022-10-16 02:30:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 2147 transitions. [2022-10-16 02:30:17,788 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 2147 transitions. Word has length 275 [2022-10-16 02:30:17,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:17,789 INFO L495 AbstractCegarLoop]: Abstraction has 1575 states and 2147 transitions. [2022-10-16 02:30:17,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 02:30:17,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 2147 transitions. [2022-10-16 02:30:17,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-10-16 02:30:17,793 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:17,793 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:17,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 02:30:17,794 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:17,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:17,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1873998629, now seen corresponding path program 1 times [2022-10-16 02:30:17,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:17,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936546849] [2022-10-16 02:30:17,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:17,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 02:30:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-10-16 02:30:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-10-16 02:30:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2022-10-16 02:30:18,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:18,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936546849] [2022-10-16 02:30:18,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936546849] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:18,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028915886] [2022-10-16 02:30:18,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:18,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:18,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:18,241 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:18,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 02:30:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 02:30:18,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:18,514 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2022-10-16 02:30:18,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:18,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028915886] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:18,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:18,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-10-16 02:30:18,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437523166] [2022-10-16 02:30:18,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:18,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:18,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:18,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:18,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:30:18,518 INFO L87 Difference]: Start difference. First operand 1575 states and 2147 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 02:30:18,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:18,597 INFO L93 Difference]: Finished difference Result 1623 states and 2171 transitions. [2022-10-16 02:30:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:18,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 275 [2022-10-16 02:30:18,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:18,607 INFO L225 Difference]: With dead ends: 1623 [2022-10-16 02:30:18,607 INFO L226 Difference]: Without dead ends: 1575 [2022-10-16 02:30:18,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:30:18,609 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 51 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:18,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 702 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2022-10-16 02:30:18,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1575. [2022-10-16 02:30:18,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1236 states have (on average 1.3438511326860842) internal successors, (1661), 1264 states have internal predecessors, (1661), 231 states have call successors, (231), 107 states have call predecessors, (231), 107 states have return successors, (231), 211 states have call predecessors, (231), 231 states have call successors, (231) [2022-10-16 02:30:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 2123 transitions. [2022-10-16 02:30:18,681 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 2123 transitions. Word has length 275 [2022-10-16 02:30:18,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:18,682 INFO L495 AbstractCegarLoop]: Abstraction has 1575 states and 2123 transitions. [2022-10-16 02:30:18,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 02:30:18,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 2123 transitions. [2022-10-16 02:30:18,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-10-16 02:30:18,718 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:18,718 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:18,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:18,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 02:30:18,934 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:18,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:18,935 INFO L85 PathProgramCache]: Analyzing trace with hash -675425354, now seen corresponding path program 1 times [2022-10-16 02:30:18,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:18,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716465458] [2022-10-16 02:30:18,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:18,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 02:30:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-10-16 02:30:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2022-10-16 02:30:19,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:19,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716465458] [2022-10-16 02:30:19,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716465458] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:19,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326702646] [2022-10-16 02:30:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:19,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:19,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:19,295 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:19,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 02:30:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 02:30:19,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2022-10-16 02:30:19,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:19,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326702646] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:19,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:19,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-10-16 02:30:19,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963809457] [2022-10-16 02:30:19,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:19,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:19,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:19,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:19,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:30:19,523 INFO L87 Difference]: Start difference. First operand 1575 states and 2123 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 02:30:19,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:19,589 INFO L93 Difference]: Finished difference Result 1623 states and 2179 transitions. [2022-10-16 02:30:19,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:19,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 276 [2022-10-16 02:30:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:19,599 INFO L225 Difference]: With dead ends: 1623 [2022-10-16 02:30:19,599 INFO L226 Difference]: Without dead ends: 1623 [2022-10-16 02:30:19,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:30:19,600 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 15 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:19,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 725 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:19,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2022-10-16 02:30:19,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1623. [2022-10-16 02:30:19,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1276 states have (on average 1.3456112852664577) internal successors, (1717), 1304 states have internal predecessors, (1717), 231 states have call successors, (231), 115 states have call predecessors, (231), 115 states have return successors, (231), 211 states have call predecessors, (231), 231 states have call successors, (231) [2022-10-16 02:30:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2179 transitions. [2022-10-16 02:30:19,653 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2179 transitions. Word has length 276 [2022-10-16 02:30:19,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:19,654 INFO L495 AbstractCegarLoop]: Abstraction has 1623 states and 2179 transitions. [2022-10-16 02:30:19,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 02:30:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2179 transitions. [2022-10-16 02:30:19,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-10-16 02:30:19,657 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:19,657 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:19,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:19,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 02:30:19,871 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:19,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:19,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1223723403, now seen corresponding path program 1 times [2022-10-16 02:30:19,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:19,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38941825] [2022-10-16 02:30:19,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:19,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 02:30:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-10-16 02:30:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-10-16 02:30:20,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:20,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38941825] [2022-10-16 02:30:20,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38941825] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:20,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:20,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:30:20,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112029570] [2022-10-16 02:30:20,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:20,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:30:20,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:20,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:30:20,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:20,405 INFO L87 Difference]: Start difference. First operand 1623 states and 2179 transitions. Second operand has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-10-16 02:30:21,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:21,023 INFO L93 Difference]: Finished difference Result 2479 states and 3549 transitions. [2022-10-16 02:30:21,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 02:30:21,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 277 [2022-10-16 02:30:21,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:21,040 INFO L225 Difference]: With dead ends: 2479 [2022-10-16 02:30:21,040 INFO L226 Difference]: Without dead ends: 2479 [2022-10-16 02:30:21,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:30:21,041 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 250 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:21,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 1646 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 02:30:21,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2022-10-16 02:30:21,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 1671. [2022-10-16 02:30:21,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1308 states have (on average 1.3371559633027523) internal successors, (1749), 1344 states have internal predecessors, (1749), 239 states have call successors, (239), 123 states have call predecessors, (239), 123 states have return successors, (239), 211 states have call predecessors, (239), 239 states have call successors, (239) [2022-10-16 02:30:21,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2227 transitions. [2022-10-16 02:30:21,173 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2227 transitions. Word has length 277 [2022-10-16 02:30:21,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:21,174 INFO L495 AbstractCegarLoop]: Abstraction has 1671 states and 2227 transitions. [2022-10-16 02:30:21,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-10-16 02:30:21,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2227 transitions. [2022-10-16 02:30:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-10-16 02:30:21,178 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:21,179 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:21,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-10-16 02:30:21,180 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:21,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:21,181 INFO L85 PathProgramCache]: Analyzing trace with hash 204198996, now seen corresponding path program 1 times [2022-10-16 02:30:21,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:21,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553496836] [2022-10-16 02:30:21,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:21,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 02:30:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-10-16 02:30:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-10-16 02:30:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,699 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 142 proven. 27 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2022-10-16 02:30:21,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:21,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553496836] [2022-10-16 02:30:21,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553496836] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:21,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602366830] [2022-10-16 02:30:21,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:21,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:21,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:21,701 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:21,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 02:30:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 02:30:21,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 251 proven. 37 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-10-16 02:30:22,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:22,596 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 146 proven. 23 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2022-10-16 02:30:22,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602366830] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:22,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:22,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 19 [2022-10-16 02:30:22,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121424562] [2022-10-16 02:30:22,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:22,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 02:30:22,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:22,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 02:30:22,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-10-16 02:30:22,600 INFO L87 Difference]: Start difference. First operand 1671 states and 2227 transitions. Second operand has 19 states, 19 states have (on average 8.31578947368421) internal successors, (158), 14 states have internal predecessors, (158), 5 states have call successors, (32), 5 states have call predecessors, (32), 9 states have return successors, (31), 8 states have call predecessors, (31), 5 states have call successors, (31) [2022-10-16 02:30:25,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:25,328 INFO L93 Difference]: Finished difference Result 3520 states and 5159 transitions. [2022-10-16 02:30:25,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 02:30:25,328 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.31578947368421) internal successors, (158), 14 states have internal predecessors, (158), 5 states have call successors, (32), 5 states have call predecessors, (32), 9 states have return successors, (31), 8 states have call predecessors, (31), 5 states have call successors, (31) Word has length 285 [2022-10-16 02:30:25,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:25,352 INFO L225 Difference]: With dead ends: 3520 [2022-10-16 02:30:25,352 INFO L226 Difference]: Without dead ends: 3520 [2022-10-16 02:30:25,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 615 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=211, Invalid=1121, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 02:30:25,353 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 664 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:25,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 3159 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 02:30:25,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3520 states. [2022-10-16 02:30:25,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3520 to 2498. [2022-10-16 02:30:25,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 1952 states have (on average 1.3288934426229508) internal successors, (2594), 2004 states have internal predecessors, (2594), 356 states have call successors, (356), 183 states have call predecessors, (356), 189 states have return successors, (364), 318 states have call predecessors, (364), 356 states have call successors, (364) [2022-10-16 02:30:25,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 3314 transitions. [2022-10-16 02:30:25,494 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 3314 transitions. Word has length 285 [2022-10-16 02:30:25,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:25,495 INFO L495 AbstractCegarLoop]: Abstraction has 2498 states and 3314 transitions. [2022-10-16 02:30:25,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.31578947368421) internal successors, (158), 14 states have internal predecessors, (158), 5 states have call successors, (32), 5 states have call predecessors, (32), 9 states have return successors, (31), 8 states have call predecessors, (31), 5 states have call successors, (31) [2022-10-16 02:30:25,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 3314 transitions. [2022-10-16 02:30:25,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-10-16 02:30:25,500 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:25,501 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:25,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:25,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:25,715 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:25,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:25,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1165813013, now seen corresponding path program 1 times [2022-10-16 02:30:25,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:25,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849097468] [2022-10-16 02:30:25,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:25,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 02:30:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-10-16 02:30:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-10-16 02:30:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2022-10-16 02:30:25,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:25,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849097468] [2022-10-16 02:30:25,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849097468] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:25,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469630479] [2022-10-16 02:30:25,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:25,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:25,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:25,971 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:25,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 02:30:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:30:26,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2022-10-16 02:30:26,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:26,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469630479] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:26,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:26,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 02:30:26,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975719188] [2022-10-16 02:30:26,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:26,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:26,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:26,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:26,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:26,227 INFO L87 Difference]: Start difference. First operand 2498 states and 3314 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 02:30:26,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:26,372 INFO L93 Difference]: Finished difference Result 2458 states and 3212 transitions. [2022-10-16 02:30:26,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:26,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 285 [2022-10-16 02:30:26,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:26,390 INFO L225 Difference]: With dead ends: 2458 [2022-10-16 02:30:26,390 INFO L226 Difference]: Without dead ends: 2434 [2022-10-16 02:30:26,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:26,392 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 11 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:26,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 725 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:26,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2022-10-16 02:30:26,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2434. [2022-10-16 02:30:26,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2434 states, 1908 states have (on average 1.3123689727463312) internal successors, (2504), 1960 states have internal predecessors, (2504), 340 states have call successors, (340), 183 states have call predecessors, (340), 185 states have return successors, (344), 298 states have call predecessors, (344), 340 states have call successors, (344) [2022-10-16 02:30:26,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2434 states to 2434 states and 3188 transitions. [2022-10-16 02:30:26,496 INFO L78 Accepts]: Start accepts. Automaton has 2434 states and 3188 transitions. Word has length 285 [2022-10-16 02:30:26,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:26,497 INFO L495 AbstractCegarLoop]: Abstraction has 2434 states and 3188 transitions. [2022-10-16 02:30:26,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 02:30:26,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2434 states and 3188 transitions. [2022-10-16 02:30:26,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-10-16 02:30:26,502 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:26,502 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:26,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:26,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:26,717 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:26,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:26,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1929980876, now seen corresponding path program 1 times [2022-10-16 02:30:26,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:26,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201232021] [2022-10-16 02:30:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:26,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 02:30:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 02:30:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 02:30:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-10-16 02:30:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-10-16 02:30:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-10-16 02:30:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-10-16 02:30:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-10-16 02:30:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-10-16 02:30:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-10-16 02:30:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 121 proven. 19 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2022-10-16 02:30:26,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:26,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201232021] [2022-10-16 02:30:26,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201232021] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:26,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630595283] [2022-10-16 02:30:26,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:26,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:26,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:26,956 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:26,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 02:30:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:30:27,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:27,166 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2022-10-16 02:30:27,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:27,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630595283] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:27,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:27,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 02:30:27,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595365363] [2022-10-16 02:30:27,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:27,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:27,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:27,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:27,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:27,169 INFO L87 Difference]: Start difference. First operand 2434 states and 3188 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:30:27,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:27,236 INFO L93 Difference]: Finished difference Result 2283 states and 2967 transitions. [2022-10-16 02:30:27,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:27,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 288 [2022-10-16 02:30:27,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:27,249 INFO L225 Difference]: With dead ends: 2283 [2022-10-16 02:30:27,250 INFO L226 Difference]: Without dead ends: 2241 [2022-10-16 02:30:27,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:27,250 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 8 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:27,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 728 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-10-16 02:30:27,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2241. [2022-10-16 02:30:27,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 1745 states have (on average 1.3060171919770773) internal successors, (2279), 1797 states have internal predecessors, (2279), 323 states have call successors, (323), 172 states have call predecessors, (323), 172 states have return successors, (323), 279 states have call predecessors, (323), 323 states have call successors, (323) [2022-10-16 02:30:27,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 2925 transitions. [2022-10-16 02:30:27,331 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 2925 transitions. Word has length 288 [2022-10-16 02:30:27,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:27,332 INFO L495 AbstractCegarLoop]: Abstraction has 2241 states and 2925 transitions. [2022-10-16 02:30:27,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:30:27,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 2925 transitions. [2022-10-16 02:30:27,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-10-16 02:30:27,336 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:27,337 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 8, 8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:27,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:27,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:27,551 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:27,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:27,552 INFO L85 PathProgramCache]: Analyzing trace with hash -716675339, now seen corresponding path program 1 times [2022-10-16 02:30:27,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:27,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913892297] [2022-10-16 02:30:27,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:27,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 02:30:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-10-16 02:30:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-10-16 02:30:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-10-16 02:30:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-10-16 02:30:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 16 proven. 146 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2022-10-16 02:30:28,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:28,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913892297] [2022-10-16 02:30:28,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913892297] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:28,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755363800] [2022-10-16 02:30:28,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:28,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:28,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:28,619 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:28,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 02:30:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 02:30:28,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:29,092 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-10-16 02:30:29,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:29,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755363800] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:29,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:29,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 23 [2022-10-16 02:30:29,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49448908] [2022-10-16 02:30:29,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:29,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:30:29,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:29,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:30:29,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2022-10-16 02:30:29,095 INFO L87 Difference]: Start difference. First operand 2241 states and 2925 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 9 states have internal predecessors, (115), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-10-16 02:30:30,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:30,293 INFO L93 Difference]: Finished difference Result 6741 states and 9115 transitions. [2022-10-16 02:30:30,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 02:30:30,294 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 9 states have internal predecessors, (115), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 300 [2022-10-16 02:30:30,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:30,335 INFO L225 Difference]: With dead ends: 6741 [2022-10-16 02:30:30,336 INFO L226 Difference]: Without dead ends: 6741 [2022-10-16 02:30:30,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=174, Invalid=1386, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 02:30:30,337 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 1124 mSDsluCounter, 3296 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 3777 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:30,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1131 Valid, 3777 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 02:30:30,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6741 states. [2022-10-16 02:30:30,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6741 to 5317. [2022-10-16 02:30:30,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5317 states, 4098 states have (on average 1.2962420693020986) internal successors, (5312), 4226 states have internal predecessors, (5312), 787 states have call successors, (787), 431 states have call predecessors, (787), 431 states have return successors, (787), 667 states have call predecessors, (787), 787 states have call successors, (787) [2022-10-16 02:30:30,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 6886 transitions. [2022-10-16 02:30:30,591 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 6886 transitions. Word has length 300 [2022-10-16 02:30:30,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:30,592 INFO L495 AbstractCegarLoop]: Abstraction has 5317 states and 6886 transitions. [2022-10-16 02:30:30,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 9 states have internal predecessors, (115), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-10-16 02:30:30,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 6886 transitions. [2022-10-16 02:30:30,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-10-16 02:30:30,596 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:30,597 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:30,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:30,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-10-16 02:30:30,810 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:30,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:30,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1366031214, now seen corresponding path program 1 times [2022-10-16 02:30:30,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:30,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886039973] [2022-10-16 02:30:30,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:30,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 02:30:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-10-16 02:30:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-10-16 02:30:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-10-16 02:30:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-10-16 02:30:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2022-10-16 02:30:31,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:31,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886039973] [2022-10-16 02:30:31,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886039973] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:31,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:31,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:30:31,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787695144] [2022-10-16 02:30:31,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:31,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:30:31,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:31,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:30:31,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:31,142 INFO L87 Difference]: Start difference. First operand 5317 states and 6886 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-10-16 02:30:31,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:31,754 INFO L93 Difference]: Finished difference Result 12113 states and 17778 transitions. [2022-10-16 02:30:31,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:30:31,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 306 [2022-10-16 02:30:31,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:31,814 INFO L225 Difference]: With dead ends: 12113 [2022-10-16 02:30:31,815 INFO L226 Difference]: Without dead ends: 12113 [2022-10-16 02:30:31,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:31,816 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 461 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:31,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 2208 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 02:30:31,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12113 states. [2022-10-16 02:30:32,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12113 to 5749. [2022-10-16 02:30:32,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5749 states, 4446 states have (on average 1.3063427800269904) internal successors, (5808), 4574 states have internal predecessors, (5808), 871 states have call successors, (871), 431 states have call predecessors, (871), 431 states have return successors, (871), 751 states have call predecessors, (871), 871 states have call successors, (871) [2022-10-16 02:30:32,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5749 states to 5749 states and 7550 transitions. [2022-10-16 02:30:32,144 INFO L78 Accepts]: Start accepts. Automaton has 5749 states and 7550 transitions. Word has length 306 [2022-10-16 02:30:32,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:32,145 INFO L495 AbstractCegarLoop]: Abstraction has 5749 states and 7550 transitions. [2022-10-16 02:30:32,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-10-16 02:30:32,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5749 states and 7550 transitions. [2022-10-16 02:30:32,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-10-16 02:30:32,149 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:32,149 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:32,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-10-16 02:30:32,150 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:32,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:32,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1098521102, now seen corresponding path program 1 times [2022-10-16 02:30:32,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:32,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5291026] [2022-10-16 02:30:32,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:32,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:30:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:30:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 02:30:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-10-16 02:30:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-10-16 02:30:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-10-16 02:30:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-10-16 02:30:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:32,606 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2022-10-16 02:30:32,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:32,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5291026] [2022-10-16 02:30:32,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5291026] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:32,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:32,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:30:32,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993105143] [2022-10-16 02:30:32,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:32,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:30:32,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:32,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:30:32,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:32,609 INFO L87 Difference]: Start difference. First operand 5749 states and 7550 transitions. Second operand has 6 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-10-16 02:30:32,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:32,967 INFO L93 Difference]: Finished difference Result 5749 states and 7543 transitions. [2022-10-16 02:30:32,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:30:32,968 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 306 [2022-10-16 02:30:32,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:32,986 INFO L225 Difference]: With dead ends: 5749 [2022-10-16 02:30:32,986 INFO L226 Difference]: Without dead ends: 5656 [2022-10-16 02:30:32,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:30:32,987 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 59 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:32,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 879 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:30:32,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5656 states. [2022-10-16 02:30:33,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5656 to 5656. [2022-10-16 02:30:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5656 states, 4368 states have (on average 1.3047161172161172) internal successors, (5699), 4488 states have internal predecessors, (5699), 864 states have call successors, (864), 424 states have call predecessors, (864), 423 states have return successors, (863), 750 states have call predecessors, (863), 863 states have call successors, (863) [2022-10-16 02:30:33,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 7426 transitions. [2022-10-16 02:30:33,177 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 7426 transitions. Word has length 306 [2022-10-16 02:30:33,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:33,178 INFO L495 AbstractCegarLoop]: Abstraction has 5656 states and 7426 transitions. [2022-10-16 02:30:33,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-10-16 02:30:33,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 7426 transitions. [2022-10-16 02:30:33,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-10-16 02:30:33,183 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:33,183 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:33,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-10-16 02:30:33,184 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:33,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:33,184 INFO L85 PathProgramCache]: Analyzing trace with hash 228012483, now seen corresponding path program 1 times [2022-10-16 02:30:33,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:33,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867036001] [2022-10-16 02:30:33,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:33,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:30:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-10-16 02:30:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-10-16 02:30:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-10-16 02:30:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-10-16 02:30:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-10-16 02:30:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-10-16 02:30:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-10-16 02:30:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-10-16 02:30:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-10-16 02:30:33,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:33,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867036001] [2022-10-16 02:30:33,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867036001] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:33,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:33,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:30:33,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875467265] [2022-10-16 02:30:33,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:33,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:30:33,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:33,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:30:33,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:33,556 INFO L87 Difference]: Start difference. First operand 5656 states and 7426 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 5 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-10-16 02:30:34,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:34,071 INFO L93 Difference]: Finished difference Result 5909 states and 7665 transitions. [2022-10-16 02:30:34,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:30:34,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 5 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 310 [2022-10-16 02:30:34,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:34,094 INFO L225 Difference]: With dead ends: 5909 [2022-10-16 02:30:34,094 INFO L226 Difference]: Without dead ends: 5909 [2022-10-16 02:30:34,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:30:34,095 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 385 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:34,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 503 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:30:34,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5909 states. [2022-10-16 02:30:34,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5909 to 2889. [2022-10-16 02:30:34,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2889 states, 2254 states have (on average 1.2781721384205855) internal successors, (2881), 2321 states have internal predecessors, (2881), 424 states have call successors, (424), 211 states have call predecessors, (424), 210 states have return successors, (423), 363 states have call predecessors, (423), 423 states have call successors, (423) [2022-10-16 02:30:34,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2889 states to 2889 states and 3728 transitions. [2022-10-16 02:30:34,243 INFO L78 Accepts]: Start accepts. Automaton has 2889 states and 3728 transitions. Word has length 310 [2022-10-16 02:30:34,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:34,244 INFO L495 AbstractCegarLoop]: Abstraction has 2889 states and 3728 transitions. [2022-10-16 02:30:34,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 5 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-10-16 02:30:34,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2889 states and 3728 transitions. [2022-10-16 02:30:34,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-10-16 02:30:34,251 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:34,251 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:34,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-10-16 02:30:34,251 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:34,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:34,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1373058623, now seen corresponding path program 1 times [2022-10-16 02:30:34,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:34,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035545320] [2022-10-16 02:30:34,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:34,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:30:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-10-16 02:30:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-10-16 02:30:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-10-16 02:30:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-10-16 02:30:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-10-16 02:30:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-10-16 02:30:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-10-16 02:30:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-10-16 02:30:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:34,840 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2022-10-16 02:30:34,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:34,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035545320] [2022-10-16 02:30:34,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035545320] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:34,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776410992] [2022-10-16 02:30:34,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:34,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:34,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:34,842 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:34,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 02:30:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:35,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 02:30:35,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2022-10-16 02:30:35,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:35,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776410992] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:35,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:35,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2022-10-16 02:30:35,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166221040] [2022-10-16 02:30:35,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:35,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:30:35,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:35,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:30:35,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-10-16 02:30:35,201 INFO L87 Difference]: Start difference. First operand 2889 states and 3728 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-16 02:30:35,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:35,692 INFO L93 Difference]: Finished difference Result 5067 states and 6881 transitions. [2022-10-16 02:30:35,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:30:35,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 310 [2022-10-16 02:30:35,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:35,710 INFO L225 Difference]: With dead ends: 5067 [2022-10-16 02:30:35,710 INFO L226 Difference]: Without dead ends: 5067 [2022-10-16 02:30:35,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2022-10-16 02:30:35,712 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 437 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:35,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 2411 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:30:35,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5067 states. [2022-10-16 02:30:35,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5067 to 3421. [2022-10-16 02:30:35,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 2664 states have (on average 1.2713963963963963) internal successors, (3387), 2747 states have internal predecessors, (3387), 506 states have call successors, (506), 251 states have call predecessors, (506), 250 states have return successors, (505), 429 states have call predecessors, (505), 505 states have call successors, (505) [2022-10-16 02:30:35,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 4398 transitions. [2022-10-16 02:30:35,835 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 4398 transitions. Word has length 310 [2022-10-16 02:30:35,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:35,835 INFO L495 AbstractCegarLoop]: Abstraction has 3421 states and 4398 transitions. [2022-10-16 02:30:35,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-16 02:30:35,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 4398 transitions. [2022-10-16 02:30:35,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-10-16 02:30:35,839 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:35,840 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:35,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:36,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-10-16 02:30:36,055 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:36,056 INFO L85 PathProgramCache]: Analyzing trace with hash -697725503, now seen corresponding path program 1 times [2022-10-16 02:30:36,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:36,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655526378] [2022-10-16 02:30:36,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:36,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:30:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-10-16 02:30:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-10-16 02:30:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-10-16 02:30:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-10-16 02:30:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-10-16 02:30:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-10-16 02:30:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-10-16 02:30:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-10-16 02:30:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,631 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2022-10-16 02:30:36,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:36,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655526378] [2022-10-16 02:30:36,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655526378] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:36,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869144581] [2022-10-16 02:30:36,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:36,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:36,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:36,634 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:36,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 02:30:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:36,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 02:30:36,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 195 proven. 4 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2022-10-16 02:30:37,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:37,248 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2022-10-16 02:30:37,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869144581] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:37,248 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:37,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 18 [2022-10-16 02:30:37,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711207798] [2022-10-16 02:30:37,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:37,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 02:30:37,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:37,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 02:30:37,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-10-16 02:30:37,252 INFO L87 Difference]: Start difference. First operand 3421 states and 4398 transitions. Second operand has 18 states, 18 states have (on average 9.0) internal successors, (162), 16 states have internal predecessors, (162), 5 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) [2022-10-16 02:30:42,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:42,697 INFO L93 Difference]: Finished difference Result 6237 states and 8503 transitions. [2022-10-16 02:30:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 02:30:42,698 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.0) internal successors, (162), 16 states have internal predecessors, (162), 5 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) Word has length 310 [2022-10-16 02:30:42,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:42,720 INFO L225 Difference]: With dead ends: 6237 [2022-10-16 02:30:42,720 INFO L226 Difference]: Without dead ends: 6237 [2022-10-16 02:30:42,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 883 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=505, Invalid=3035, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 02:30:42,723 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 1793 mSDsluCounter, 5162 mSDsCounter, 0 mSdLazyCounter, 5944 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 5789 SdHoareTripleChecker+Invalid, 6716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 5944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:42,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 5789 Invalid, 6716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [772 Valid, 5944 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-10-16 02:30:42,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6237 states. [2022-10-16 02:30:42,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6237 to 3086. [2022-10-16 02:30:42,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3086 states, 2406 states have (on average 1.2660016625103907) internal successors, (3046), 2479 states have internal predecessors, (3046), 450 states have call successors, (450), 230 states have call predecessors, (450), 229 states have return successors, (449), 383 states have call predecessors, (449), 449 states have call successors, (449) [2022-10-16 02:30:42,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3086 states to 3086 states and 3945 transitions. [2022-10-16 02:30:42,880 INFO L78 Accepts]: Start accepts. Automaton has 3086 states and 3945 transitions. Word has length 310 [2022-10-16 02:30:42,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:42,881 INFO L495 AbstractCegarLoop]: Abstraction has 3086 states and 3945 transitions. [2022-10-16 02:30:42,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.0) internal successors, (162), 16 states have internal predecessors, (162), 5 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) [2022-10-16 02:30:42,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3086 states and 3945 transitions. [2022-10-16 02:30:42,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-10-16 02:30:42,885 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:42,886 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:42,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:43,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 02:30:43,100 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:43,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:43,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1497298181, now seen corresponding path program 1 times [2022-10-16 02:30:43,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:43,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098484043] [2022-10-16 02:30:43,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:43,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:30:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-10-16 02:30:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-10-16 02:30:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-10-16 02:30:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-10-16 02:30:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-10-16 02:30:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-10-16 02:30:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-10-16 02:30:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-10-16 02:30:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-10-16 02:30:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:43,405 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2022-10-16 02:30:43,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:43,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098484043] [2022-10-16 02:30:43,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098484043] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:43,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:43,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:43,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762441566] [2022-10-16 02:30:43,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:43,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:43,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:43,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:43,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:43,409 INFO L87 Difference]: Start difference. First operand 3086 states and 3945 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-10-16 02:30:44,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:44,058 INFO L93 Difference]: Finished difference Result 2789 states and 3524 transitions. [2022-10-16 02:30:44,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 02:30:44,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 322 [2022-10-16 02:30:44,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:44,068 INFO L225 Difference]: With dead ends: 2789 [2022-10-16 02:30:44,069 INFO L226 Difference]: Without dead ends: 2776 [2022-10-16 02:30:44,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:30:44,070 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 498 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:44,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 968 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 02:30:44,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2022-10-16 02:30:44,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2446. [2022-10-16 02:30:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2446 states, 1919 states have (on average 1.2480458572173008) internal successors, (2395), 1971 states have internal predecessors, (2395), 352 states have call successors, (352), 174 states have call predecessors, (352), 174 states have return successors, (352), 300 states have call predecessors, (352), 352 states have call successors, (352) [2022-10-16 02:30:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 3099 transitions. [2022-10-16 02:30:44,142 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 3099 transitions. Word has length 322 [2022-10-16 02:30:44,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:44,143 INFO L495 AbstractCegarLoop]: Abstraction has 2446 states and 3099 transitions. [2022-10-16 02:30:44,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-10-16 02:30:44,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 3099 transitions. [2022-10-16 02:30:44,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-10-16 02:30:44,150 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:44,151 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:44,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-10-16 02:30:44,151 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:44,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:44,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1189813913, now seen corresponding path program 1 times [2022-10-16 02:30:44,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:44,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613350948] [2022-10-16 02:30:44,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:44,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:30:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-10-16 02:30:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-10-16 02:30:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-10-16 02:30:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-10-16 02:30:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-10-16 02:30:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-10-16 02:30:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-10-16 02:30:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-10-16 02:30:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-10-16 02:30:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-10-16 02:30:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-10-16 02:30:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-10-16 02:30:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-10-16 02:30:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-10-16 02:30:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-10-16 02:30:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:44,846 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked. [2022-10-16 02:30:44,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:44,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613350948] [2022-10-16 02:30:44,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613350948] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:44,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416203021] [2022-10-16 02:30:44,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:44,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:44,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:44,849 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:44,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 02:30:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:45,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 36 conjunts are in the unsatisfiable core [2022-10-16 02:30:45,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:45,512 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 240 proven. 97 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2022-10-16 02:30:45,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:46,157 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 34 proven. 77 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2022-10-16 02:30:46,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416203021] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:46,158 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:46,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 27 [2022-10-16 02:30:46,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948177933] [2022-10-16 02:30:46,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:46,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 02:30:46,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:46,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 02:30:46,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2022-10-16 02:30:46,161 INFO L87 Difference]: Start difference. First operand 2446 states and 3099 transitions. Second operand has 27 states, 27 states have (on average 9.74074074074074) internal successors, (263), 23 states have internal predecessors, (263), 8 states have call successors, (65), 9 states have call predecessors, (65), 14 states have return successors, (65), 11 states have call predecessors, (65), 8 states have call successors, (65) [2022-10-16 02:31:08,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:08,880 INFO L93 Difference]: Finished difference Result 15870 states and 21513 transitions. [2022-10-16 02:31:08,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2022-10-16 02:31:08,881 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.74074074074074) internal successors, (263), 23 states have internal predecessors, (263), 8 states have call successors, (65), 9 states have call predecessors, (65), 14 states have return successors, (65), 11 states have call predecessors, (65), 8 states have call successors, (65) Word has length 371 [2022-10-16 02:31:08,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:08,929 INFO L225 Difference]: With dead ends: 15870 [2022-10-16 02:31:08,930 INFO L226 Difference]: Without dead ends: 15870 [2022-10-16 02:31:08,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1045 GetRequests, 812 SyntacticMatches, 1 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20304 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=6115, Invalid=48407, Unknown=0, NotChecked=0, Total=54522 [2022-10-16 02:31:08,948 INFO L413 NwaCegarLoop]: 1848 mSDtfsCounter, 4391 mSDsluCounter, 19494 mSDsCounter, 0 mSdLazyCounter, 19922 mSolverCounterSat, 4549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4391 SdHoareTripleChecker+Valid, 21342 SdHoareTripleChecker+Invalid, 24471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4549 IncrementalHoareTripleChecker+Valid, 19922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:08,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4391 Valid, 21342 Invalid, 24471 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4549 Valid, 19922 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2022-10-16 02:31:08,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15870 states. [2022-10-16 02:31:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15870 to 9782. [2022-10-16 02:31:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9782 states, 7477 states have (on average 1.2701618296108064) internal successors, (9497), 7638 states have internal predecessors, (9497), 1586 states have call successors, (1586), 682 states have call predecessors, (1586), 718 states have return successors, (1658), 1461 states have call predecessors, (1658), 1586 states have call successors, (1658) [2022-10-16 02:31:09,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 12741 transitions. [2022-10-16 02:31:09,415 INFO L78 Accepts]: Start accepts. Automaton has 9782 states and 12741 transitions. Word has length 371 [2022-10-16 02:31:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:09,415 INFO L495 AbstractCegarLoop]: Abstraction has 9782 states and 12741 transitions. [2022-10-16 02:31:09,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.74074074074074) internal successors, (263), 23 states have internal predecessors, (263), 8 states have call successors, (65), 9 states have call predecessors, (65), 14 states have return successors, (65), 11 states have call predecessors, (65), 8 states have call successors, (65) [2022-10-16 02:31:09,416 INFO L276 IsEmpty]: Start isEmpty. Operand 9782 states and 12741 transitions. [2022-10-16 02:31:09,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-10-16 02:31:09,440 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:09,441 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:09,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:09,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-10-16 02:31:09,655 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:09,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:09,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1268099768, now seen corresponding path program 1 times [2022-10-16 02:31:09,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:09,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092580962] [2022-10-16 02:31:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:09,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:31:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:31:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:31:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:31:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:31:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:31:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:31:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:31:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:31:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:31:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:31:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:31:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:31:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:31:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:31:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:31:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:31:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-10-16 02:31:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-10-16 02:31:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-10-16 02:31:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-10-16 02:31:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-10-16 02:31:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-10-16 02:31:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-10-16 02:31:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-10-16 02:31:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-10-16 02:31:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-10-16 02:31:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-10-16 02:31:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-10-16 02:31:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-10-16 02:31:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-10-16 02:31:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-10-16 02:31:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 44 proven. 5 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-10-16 02:31:10,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:10,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092580962] [2022-10-16 02:31:10,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092580962] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:10,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589083125] [2022-10-16 02:31:10,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:10,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:10,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:10,075 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:10,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 02:31:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:10,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 02:31:10,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:10,448 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2022-10-16 02:31:10,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:31:10,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589083125] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:10,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:31:10,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2022-10-16 02:31:10,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65568177] [2022-10-16 02:31:10,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:10,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:31:10,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:10,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:31:10,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:31:10,451 INFO L87 Difference]: Start difference. First operand 9782 states and 12741 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-10-16 02:31:10,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:10,976 INFO L93 Difference]: Finished difference Result 13606 states and 18091 transitions. [2022-10-16 02:31:10,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 02:31:10,977 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 371 [2022-10-16 02:31:10,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:11,017 INFO L225 Difference]: With dead ends: 13606 [2022-10-16 02:31:11,018 INFO L226 Difference]: Without dead ends: 13606 [2022-10-16 02:31:11,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-10-16 02:31:11,019 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 479 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:11,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 2570 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:31:11,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13606 states. [2022-10-16 02:31:11,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13606 to 8040. [2022-10-16 02:31:11,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8040 states, 6165 states have (on average 1.2472019464720194) internal successors, (7689), 6336 states have internal predecessors, (7689), 1228 states have call successors, (1228), 610 states have call predecessors, (1228), 646 states have return successors, (1276), 1093 states have call predecessors, (1276), 1228 states have call successors, (1276) [2022-10-16 02:31:11,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8040 states to 8040 states and 10193 transitions. [2022-10-16 02:31:11,353 INFO L78 Accepts]: Start accepts. Automaton has 8040 states and 10193 transitions. Word has length 371 [2022-10-16 02:31:11,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:11,354 INFO L495 AbstractCegarLoop]: Abstraction has 8040 states and 10193 transitions. [2022-10-16 02:31:11,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-10-16 02:31:11,355 INFO L276 IsEmpty]: Start isEmpty. Operand 8040 states and 10193 transitions. [2022-10-16 02:31:11,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-10-16 02:31:11,373 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:11,373 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:11,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:11,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:11,588 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:11,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:11,589 INFO L85 PathProgramCache]: Analyzing trace with hash 977796548, now seen corresponding path program 1 times [2022-10-16 02:31:11,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:11,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13337645] [2022-10-16 02:31:11,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:11,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:31:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:31:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:31:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:31:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:31:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:31:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:31:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:31:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:31:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:31:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:31:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:31:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:31:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:31:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:31:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:31:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:31:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-10-16 02:31:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:31:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 02:31:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-10-16 02:31:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-10-16 02:31:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 02:31:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-10-16 02:31:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-10-16 02:31:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-10-16 02:31:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-10-16 02:31:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-10-16 02:31:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-10-16 02:31:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-10-16 02:31:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-10-16 02:31:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-10-16 02:31:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked. [2022-10-16 02:31:12,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:12,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13337645] [2022-10-16 02:31:12,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13337645] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:12,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837920273] [2022-10-16 02:31:12,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:12,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:12,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:12,631 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:12,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 02:31:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:12,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 36 conjunts are in the unsatisfiable core [2022-10-16 02:31:12,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:13,324 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 206 proven. 121 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-16 02:31:13,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 33 proven. 72 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2022-10-16 02:31:13,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837920273] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:13,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:13,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 30 [2022-10-16 02:31:13,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509565448] [2022-10-16 02:31:13,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:13,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 02:31:13,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:13,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 02:31:13,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2022-10-16 02:31:13,938 INFO L87 Difference]: Start difference. First operand 8040 states and 10193 transitions. Second operand has 30 states, 30 states have (on average 8.933333333333334) internal successors, (268), 26 states have internal predecessors, (268), 9 states have call successors, (68), 9 states have call predecessors, (68), 13 states have return successors, (68), 12 states have call predecessors, (68), 9 states have call successors, (68) [2022-10-16 02:32:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:10,021 INFO L93 Difference]: Finished difference Result 38010 states and 51289 transitions. [2022-10-16 02:32:10,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 508 states. [2022-10-16 02:32:10,021 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.933333333333334) internal successors, (268), 26 states have internal predecessors, (268), 9 states have call successors, (68), 9 states have call predecessors, (68), 13 states have return successors, (68), 12 states have call predecessors, (68), 9 states have call successors, (68) Word has length 372 [2022-10-16 02:32:10,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:10,208 INFO L225 Difference]: With dead ends: 38010 [2022-10-16 02:32:10,208 INFO L226 Difference]: Without dead ends: 38010 [2022-10-16 02:32:10,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1376 GetRequests, 842 SyntacticMatches, 1 SemanticMatches, 533 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125465 ImplicationChecksByTransitivity, 25.6s TimeCoverageRelationStatistics Valid=20351, Invalid=265339, Unknown=0, NotChecked=0, Total=285690 [2022-10-16 02:32:10,265 INFO L413 NwaCegarLoop]: 1960 mSDtfsCounter, 6699 mSDsluCounter, 23463 mSDsCounter, 0 mSdLazyCounter, 35232 mSolverCounterSat, 10877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6699 SdHoareTripleChecker+Valid, 25423 SdHoareTripleChecker+Invalid, 46109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10877 IncrementalHoareTripleChecker+Valid, 35232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:10,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6699 Valid, 25423 Invalid, 46109 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10877 Valid, 35232 Invalid, 0 Unknown, 0 Unchecked, 28.4s Time] [2022-10-16 02:32:10,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38010 states. [2022-10-16 02:32:10,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38010 to 13505. [2022-10-16 02:32:10,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13505 states, 10343 states have (on average 1.2499274871894035) internal successors, (12928), 10635 states have internal predecessors, (12928), 2065 states have call successors, (2065), 1016 states have call predecessors, (2065), 1096 states have return successors, (2185), 1853 states have call predecessors, (2185), 2065 states have call successors, (2185) [2022-10-16 02:32:10,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13505 states to 13505 states and 17178 transitions. [2022-10-16 02:32:10,939 INFO L78 Accepts]: Start accepts. Automaton has 13505 states and 17178 transitions. Word has length 372 [2022-10-16 02:32:10,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:10,940 INFO L495 AbstractCegarLoop]: Abstraction has 13505 states and 17178 transitions. [2022-10-16 02:32:10,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.933333333333334) internal successors, (268), 26 states have internal predecessors, (268), 9 states have call successors, (68), 9 states have call predecessors, (68), 13 states have return successors, (68), 12 states have call predecessors, (68), 9 states have call successors, (68) [2022-10-16 02:32:10,940 INFO L276 IsEmpty]: Start isEmpty. Operand 13505 states and 17178 transitions. [2022-10-16 02:32:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-10-16 02:32:10,971 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:10,971 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:11,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 02:32:11,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:11,185 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:11,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:11,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1167145445, now seen corresponding path program 1 times [2022-10-16 02:32:11,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:11,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646047936] [2022-10-16 02:32:11,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:11,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:32:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:32:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:32:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:32:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:32:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:32:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:32:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:32:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:32:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:32:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:32:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:32:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:32:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:32:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:32:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:32:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:32:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:32:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-10-16 02:32:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:32:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 02:32:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-10-16 02:32:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-10-16 02:32:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 02:32:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-10-16 02:32:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-10-16 02:32:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-10-16 02:32:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-10-16 02:32:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-10-16 02:32:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-10-16 02:32:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-10-16 02:32:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-10-16 02:32:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-10-16 02:32:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:11,758 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 907 trivial. 0 not checked. [2022-10-16 02:32:11,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:11,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646047936] [2022-10-16 02:32:11,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646047936] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:32:11,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:32:11,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:32:11,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937444862] [2022-10-16 02:32:11,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:32:11,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:32:11,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:11,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:32:11,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:32:11,761 INFO L87 Difference]: Start difference. First operand 13505 states and 17178 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 5 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-10-16 02:32:12,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:12,132 INFO L93 Difference]: Finished difference Result 13577 states and 17214 transitions. [2022-10-16 02:32:12,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:32:12,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 5 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 372 [2022-10-16 02:32:12,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:12,161 INFO L225 Difference]: With dead ends: 13577 [2022-10-16 02:32:12,161 INFO L226 Difference]: Without dead ends: 13577 [2022-10-16 02:32:12,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:32:12,162 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 295 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:12,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 457 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:32:12,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13577 states. [2022-10-16 02:32:12,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13577 to 7503. [2022-10-16 02:32:12,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7503 states, 5841 states have (on average 1.2425954459852766) internal successors, (7258), 5966 states have internal predecessors, (7258), 1071 states have call successors, (1071), 550 states have call predecessors, (1071), 590 states have return successors, (1131), 986 states have call predecessors, (1131), 1071 states have call successors, (1131) [2022-10-16 02:32:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7503 states to 7503 states and 9460 transitions. [2022-10-16 02:32:12,435 INFO L78 Accepts]: Start accepts. Automaton has 7503 states and 9460 transitions. Word has length 372 [2022-10-16 02:32:12,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:12,438 INFO L495 AbstractCegarLoop]: Abstraction has 7503 states and 9460 transitions. [2022-10-16 02:32:12,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 5 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-10-16 02:32:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7503 states and 9460 transitions. [2022-10-16 02:32:12,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-10-16 02:32:12,462 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:12,464 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:12,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-10-16 02:32:12,464 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1215841679, now seen corresponding path program 1 times [2022-10-16 02:32:12,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:12,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951262751] [2022-10-16 02:32:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:12,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:32:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:32:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:32:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:32:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:32:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:32:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:32:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:32:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:32:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:32:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:32:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:32:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:32:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:32:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:32:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:32:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-10-16 02:32:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-10-16 02:32:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-10-16 02:32:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:32:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 02:32:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-10-16 02:32:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-10-16 02:32:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 02:32:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-10-16 02:32:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-10-16 02:32:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-10-16 02:32:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-10-16 02:32:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-10-16 02:32:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-10-16 02:32:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-10-16 02:32:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-10-16 02:32:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-10-16 02:32:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:12,814 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2022-10-16 02:32:12,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:12,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951262751] [2022-10-16 02:32:12,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951262751] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:32:12,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:32:12,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:32:12,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101596734] [2022-10-16 02:32:12,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:32:12,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:32:12,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:12,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:32:12,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:32:12,817 INFO L87 Difference]: Start difference. First operand 7503 states and 9460 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 5 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2022-10-16 02:32:13,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:13,371 INFO L93 Difference]: Finished difference Result 7551 states and 9544 transitions. [2022-10-16 02:32:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:32:13,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 5 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 372 [2022-10-16 02:32:13,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:13,388 INFO L225 Difference]: With dead ends: 7551 [2022-10-16 02:32:13,388 INFO L226 Difference]: Without dead ends: 7551 [2022-10-16 02:32:13,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:32:13,389 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 293 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:13,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 500 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:32:13,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7551 states. [2022-10-16 02:32:13,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7551 to 7545. [2022-10-16 02:32:13,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7545 states, 5847 states have (on average 1.2423465024799043) internal successors, (7264), 6002 states have internal predecessors, (7264), 1107 states have call successors, (1107), 550 states have call predecessors, (1107), 590 states have return successors, (1167), 992 states have call predecessors, (1167), 1107 states have call successors, (1167) [2022-10-16 02:32:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7545 states to 7545 states and 9538 transitions. [2022-10-16 02:32:13,656 INFO L78 Accepts]: Start accepts. Automaton has 7545 states and 9538 transitions. Word has length 372 [2022-10-16 02:32:13,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:13,659 INFO L495 AbstractCegarLoop]: Abstraction has 7545 states and 9538 transitions. [2022-10-16 02:32:13,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 5 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2022-10-16 02:32:13,660 INFO L276 IsEmpty]: Start isEmpty. Operand 7545 states and 9538 transitions. [2022-10-16 02:32:13,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-10-16 02:32:13,689 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:13,690 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:13,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-10-16 02:32:13,690 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:13,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:13,691 INFO L85 PathProgramCache]: Analyzing trace with hash 979387187, now seen corresponding path program 1 times [2022-10-16 02:32:13,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:13,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720074443] [2022-10-16 02:32:13,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:13,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:32:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:32:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:32:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:32:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:32:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:32:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:32:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:32:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:32:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:32:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:32:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:32:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:32:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:32:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:32:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:32:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-10-16 02:32:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-10-16 02:32:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-10-16 02:32:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:32:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 02:32:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-10-16 02:32:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-10-16 02:32:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 02:32:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-10-16 02:32:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-10-16 02:32:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-10-16 02:32:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-10-16 02:32:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-10-16 02:32:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-10-16 02:32:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:13,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-10-16 02:32:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:14,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-10-16 02:32:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-10-16 02:32:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:14,005 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 44 proven. 5 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-10-16 02:32:14,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:14,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720074443] [2022-10-16 02:32:14,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720074443] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:32:14,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104291859] [2022-10-16 02:32:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:14,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:14,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:32:14,008 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:32:14,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 02:32:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:14,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:32:14,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:32:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2022-10-16 02:32:14,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:32:14,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104291859] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:32:14,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:32:14,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 02:32:14,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131985874] [2022-10-16 02:32:14,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:32:14,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:32:14,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:14,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:32:14,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:32:14,274 INFO L87 Difference]: Start difference. First operand 7545 states and 9538 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 02:32:14,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:14,350 INFO L93 Difference]: Finished difference Result 7735 states and 9530 transitions. [2022-10-16 02:32:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:32:14,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 372 [2022-10-16 02:32:14,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:14,365 INFO L225 Difference]: With dead ends: 7735 [2022-10-16 02:32:14,365 INFO L226 Difference]: Without dead ends: 7425 [2022-10-16 02:32:14,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:32:14,366 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 40 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:14,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 681 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:32:14,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7425 states. [2022-10-16 02:32:14,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7425 to 7425. [2022-10-16 02:32:14,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7425 states, 5767 states have (on average 1.2148430726547599) internal successors, (7006), 5902 states have internal predecessors, (7006), 1107 states have call successors, (1107), 550 states have call predecessors, (1107), 550 states have return successors, (1107), 972 states have call predecessors, (1107), 1107 states have call successors, (1107) [2022-10-16 02:32:14,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7425 states to 7425 states and 9220 transitions. [2022-10-16 02:32:14,539 INFO L78 Accepts]: Start accepts. Automaton has 7425 states and 9220 transitions. Word has length 372 [2022-10-16 02:32:14,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:14,540 INFO L495 AbstractCegarLoop]: Abstraction has 7425 states and 9220 transitions. [2022-10-16 02:32:14,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 02:32:14,540 INFO L276 IsEmpty]: Start isEmpty. Operand 7425 states and 9220 transitions. [2022-10-16 02:32:14,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-10-16 02:32:14,554 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:14,554 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:14,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 02:32:14,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-10-16 02:32:14,769 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:14,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:14,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1856144391, now seen corresponding path program 1 times [2022-10-16 02:32:14,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:14,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611376899] [2022-10-16 02:32:14,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:14,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:32:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:32:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:32:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:32:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:32:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:32:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:32:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:32:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:32:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:32:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:32:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:32:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:32:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:32:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:32:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:32:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-10-16 02:32:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-10-16 02:32:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-10-16 02:32:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:32:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 02:32:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-10-16 02:32:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-10-16 02:32:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 02:32:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-10-16 02:32:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-10-16 02:32:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-10-16 02:32:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-10-16 02:32:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-10-16 02:32:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-10-16 02:32:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-10-16 02:32:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-10-16 02:32:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-10-16 02:32:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-10-16 02:32:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-10-16 02:32:15,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:15,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611376899] [2022-10-16 02:32:15,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611376899] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:32:15,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301857123] [2022-10-16 02:32:15,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:15,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:15,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:32:15,728 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:32:15,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 02:32:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:16,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-16 02:32:16,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:32:16,549 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 352 proven. 126 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2022-10-16 02:32:16,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:32:17,331 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 51 proven. 204 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2022-10-16 02:32:17,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301857123] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:32:17,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:32:17,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 19] total 35 [2022-10-16 02:32:17,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717565483] [2022-10-16 02:32:17,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:32:17,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-16 02:32:17,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:17,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-16 02:32:17,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1089, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 02:32:17,335 INFO L87 Difference]: Start difference. First operand 7425 states and 9220 transitions. Second operand has 35 states, 34 states have (on average 8.970588235294118) internal successors, (305), 30 states have internal predecessors, (305), 11 states have call successors, (75), 10 states have call predecessors, (75), 12 states have return successors, (76), 13 states have call predecessors, (76), 10 states have call successors, (76) [2022-10-16 02:32:35,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:35,405 INFO L93 Difference]: Finished difference Result 27989 states and 38596 transitions. [2022-10-16 02:32:35,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-10-16 02:32:35,406 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 8.970588235294118) internal successors, (305), 30 states have internal predecessors, (305), 11 states have call successors, (75), 10 states have call predecessors, (75), 12 states have return successors, (76), 13 states have call predecessors, (76), 10 states have call successors, (76) Word has length 382 [2022-10-16 02:32:35,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:35,449 INFO L225 Difference]: With dead ends: 27989 [2022-10-16 02:32:35,449 INFO L226 Difference]: Without dead ends: 27989 [2022-10-16 02:32:35,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 822 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12236 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=2799, Invalid=31983, Unknown=0, NotChecked=0, Total=34782 [2022-10-16 02:32:35,453 INFO L413 NwaCegarLoop]: 1066 mSDtfsCounter, 3469 mSDsluCounter, 17364 mSDsCounter, 0 mSdLazyCounter, 17476 mSolverCounterSat, 2010 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3486 SdHoareTripleChecker+Valid, 18430 SdHoareTripleChecker+Invalid, 19486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2010 IncrementalHoareTripleChecker+Valid, 17476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:35,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3486 Valid, 18430 Invalid, 19486 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2010 Valid, 17476 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-10-16 02:32:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27989 states. [2022-10-16 02:32:35,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27989 to 7895. [2022-10-16 02:32:35,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7895 states, 6183 states have (on average 1.2097687206857513) internal successors, (7480), 6288 states have internal predecessors, (7480), 1120 states have call successors, (1120), 589 states have call predecessors, (1120), 591 states have return successors, (1124), 1017 states have call predecessors, (1124), 1120 states have call successors, (1124) [2022-10-16 02:32:35,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7895 states to 7895 states and 9724 transitions. [2022-10-16 02:32:35,883 INFO L78 Accepts]: Start accepts. Automaton has 7895 states and 9724 transitions. Word has length 382 [2022-10-16 02:32:35,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:35,883 INFO L495 AbstractCegarLoop]: Abstraction has 7895 states and 9724 transitions. [2022-10-16 02:32:35,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 8.970588235294118) internal successors, (305), 30 states have internal predecessors, (305), 11 states have call successors, (75), 10 states have call predecessors, (75), 12 states have return successors, (76), 13 states have call predecessors, (76), 10 states have call successors, (76) [2022-10-16 02:32:35,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7895 states and 9724 transitions. [2022-10-16 02:32:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-10-16 02:32:35,899 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:35,899 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:35,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 02:32:36,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:36,114 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:36,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:36,114 INFO L85 PathProgramCache]: Analyzing trace with hash 86990183, now seen corresponding path program 1 times [2022-10-16 02:32:36,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:36,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314943714] [2022-10-16 02:32:36,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:36,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:32:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:32:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:32:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 02:32:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:32:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:32:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:32:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:32:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 02:32:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:32:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:32:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-16 02:32:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:32:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:32:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:32:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 02:32:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-10-16 02:32:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-10-16 02:32:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-10-16 02:32:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-10-16 02:32:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-10-16 02:32:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-10-16 02:32:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-10-16 02:32:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-10-16 02:32:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-10-16 02:32:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-10-16 02:32:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-10-16 02:32:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-10-16 02:32:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-10-16 02:32:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-10-16 02:32:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-10-16 02:32:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-10-16 02:32:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-10-16 02:32:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2022-10-16 02:32:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,347 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 9 proven. 136 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2022-10-16 02:32:36,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:36,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314943714] [2022-10-16 02:32:36,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314943714] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:32:36,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801719563] [2022-10-16 02:32:36,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:36,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:36,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:32:36,350 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:32:36,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 02:32:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:36,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:32:36,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:32:36,625 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 894 trivial. 0 not checked. [2022-10-16 02:32:36,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:32:36,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801719563] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:32:36,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:32:36,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 02:32:36,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827029951] [2022-10-16 02:32:36,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:32:36,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:32:36,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:36,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:32:36,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:32:36,628 INFO L87 Difference]: Start difference. First operand 7895 states and 9724 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 02:32:36,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:36,789 INFO L93 Difference]: Finished difference Result 7397 states and 9147 transitions. [2022-10-16 02:32:36,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:32:36,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 386 [2022-10-16 02:32:36,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:36,802 INFO L225 Difference]: With dead ends: 7397 [2022-10-16 02:32:36,802 INFO L226 Difference]: Without dead ends: 7385 [2022-10-16 02:32:36,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:32:36,803 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 28 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:36,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 688 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:32:36,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7385 states. [2022-10-16 02:32:36,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7385 to 7385. [2022-10-16 02:32:36,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7385 states, 5762 states have (on average 1.2136410968413744) internal successors, (6993), 5867 states have internal predecessors, (6993), 1071 states have call successors, (1071), 551 states have call predecessors, (1071), 551 states have return successors, (1071), 966 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-10-16 02:32:36,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7385 states to 7385 states and 9135 transitions. [2022-10-16 02:32:36,958 INFO L78 Accepts]: Start accepts. Automaton has 7385 states and 9135 transitions. Word has length 386 [2022-10-16 02:32:36,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:36,958 INFO L495 AbstractCegarLoop]: Abstraction has 7385 states and 9135 transitions. [2022-10-16 02:32:36,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 02:32:36,959 INFO L276 IsEmpty]: Start isEmpty. Operand 7385 states and 9135 transitions. [2022-10-16 02:32:36,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-10-16 02:32:36,973 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:36,974 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:37,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 02:32:37,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:37,189 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:37,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:37,189 INFO L85 PathProgramCache]: Analyzing trace with hash -51051004, now seen corresponding path program 1 times [2022-10-16 02:32:37,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:37,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671781392] [2022-10-16 02:32:37,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:37,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:32:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:32:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:32:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:32:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:32:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:32:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:32:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:32:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:32:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:32:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:32:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:32:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:32:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:32:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:32:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:32:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:32:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:32:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-10-16 02:32:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:32:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 02:32:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-10-16 02:32:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-10-16 02:32:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 02:32:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-10-16 02:32:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-10-16 02:32:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-10-16 02:32:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-10-16 02:32:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-10-16 02:32:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-10-16 02:32:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-10-16 02:32:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-10-16 02:32:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-10-16 02:32:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-10-16 02:32:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-10-16 02:32:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:37,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2022-10-16 02:32:37,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:37,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671781392] [2022-10-16 02:32:37,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671781392] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:32:37,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:32:37,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 02:32:37,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950907060] [2022-10-16 02:32:37,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:32:37,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:32:37,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:37,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:32:37,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:32:37,654 INFO L87 Difference]: Start difference. First operand 7385 states and 9135 transitions. Second operand has 10 states, 10 states have (on average 12.9) internal successors, (129), 8 states have internal predecessors, (129), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2022-10-16 02:32:39,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:39,605 INFO L93 Difference]: Finished difference Result 13362 states and 17451 transitions. [2022-10-16 02:32:39,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 02:32:39,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.9) internal successors, (129), 8 states have internal predecessors, (129), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 393 [2022-10-16 02:32:39,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:39,628 INFO L225 Difference]: With dead ends: 13362 [2022-10-16 02:32:39,628 INFO L226 Difference]: Without dead ends: 13362 [2022-10-16 02:32:39,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 02:32:39,632 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 672 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 2358 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 2358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:39,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 2763 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 2358 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 02:32:39,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13362 states. [2022-10-16 02:32:39,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13362 to 6935. [2022-10-16 02:32:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6935 states, 5432 states have (on average 1.2082106038291605) internal successors, (6563), 5532 states have internal predecessors, (6563), 971 states have call successors, (971), 531 states have call predecessors, (971), 531 states have return successors, (971), 871 states have call predecessors, (971), 971 states have call successors, (971) [2022-10-16 02:32:39,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 8505 transitions. [2022-10-16 02:32:39,896 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 8505 transitions. Word has length 393 [2022-10-16 02:32:39,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:39,897 INFO L495 AbstractCegarLoop]: Abstraction has 6935 states and 8505 transitions. [2022-10-16 02:32:39,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.9) internal successors, (129), 8 states have internal predecessors, (129), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2022-10-16 02:32:39,897 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 8505 transitions. [2022-10-16 02:32:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-10-16 02:32:39,914 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:39,914 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:39,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-10-16 02:32:39,915 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:39,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:39,916 INFO L85 PathProgramCache]: Analyzing trace with hash -931418942, now seen corresponding path program 1 times [2022-10-16 02:32:39,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:39,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921703995] [2022-10-16 02:32:39,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:39,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:32:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:32:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:32:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:32:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:32:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:32:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:32:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:32:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:32:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:32:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:32:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:32:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:32:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:32:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:32:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:32:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:32:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-10-16 02:32:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-10-16 02:32:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-10-16 02:32:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-10-16 02:32:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-10-16 02:32:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-16 02:32:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-10-16 02:32:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-10-16 02:32:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-10-16 02:32:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-10-16 02:32:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-10-16 02:32:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-10-16 02:32:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-10-16 02:32:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-10-16 02:32:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-10-16 02:32:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-10-16 02:32:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-10-16 02:32:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-10-16 02:32:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:40,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 1006 trivial. 0 not checked. [2022-10-16 02:32:40,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:40,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921703995] [2022-10-16 02:32:40,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921703995] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:32:40,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722595482] [2022-10-16 02:32:40,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:40,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:40,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:32:40,782 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:32:40,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 02:32:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 66 conjunts are in the unsatisfiable core [2022-10-16 02:32:41,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:32:42,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 472 proven. 213 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-10-16 02:32:42,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:32:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 104 proven. 189 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2022-10-16 02:32:44,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722595482] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:32:44,261 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:32:44,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 27, 21] total 53 [2022-10-16 02:32:44,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471977752] [2022-10-16 02:32:44,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:32:44,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-16 02:32:44,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:44,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-16 02:32:44,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=2545, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 02:32:44,264 INFO L87 Difference]: Start difference. First operand 6935 states and 8505 transitions. Second operand has 53 states, 53 states have (on average 7.169811320754717) internal successors, (380), 46 states have internal predecessors, (380), 18 states have call successors, (78), 13 states have call predecessors, (78), 19 states have return successors, (80), 21 states have call predecessors, (80), 18 states have call successors, (80) [2022-10-16 02:33:14,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:33:14,942 INFO L93 Difference]: Finished difference Result 26486 states and 35511 transitions. [2022-10-16 02:33:14,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-10-16 02:33:14,944 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 7.169811320754717) internal successors, (380), 46 states have internal predecessors, (380), 18 states have call successors, (78), 13 states have call predecessors, (78), 19 states have return successors, (80), 21 states have call predecessors, (80), 18 states have call successors, (80) Word has length 393 [2022-10-16 02:33:14,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:33:14,988 INFO L225 Difference]: With dead ends: 26486 [2022-10-16 02:33:14,989 INFO L226 Difference]: Without dead ends: 26486 [2022-10-16 02:33:14,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1043 GetRequests, 836 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14059 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=3497, Invalid=39975, Unknown=0, NotChecked=0, Total=43472 [2022-10-16 02:33:14,993 INFO L413 NwaCegarLoop]: 1269 mSDtfsCounter, 3219 mSDsluCounter, 27739 mSDsCounter, 0 mSdLazyCounter, 26724 mSolverCounterSat, 1914 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3237 SdHoareTripleChecker+Valid, 29008 SdHoareTripleChecker+Invalid, 28638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1914 IncrementalHoareTripleChecker+Valid, 26724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-10-16 02:33:14,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3237 Valid, 29008 Invalid, 28638 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1914 Valid, 26724 Invalid, 0 Unknown, 0 Unchecked, 19.6s Time] [2022-10-16 02:33:15,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26486 states. [2022-10-16 02:33:15,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26486 to 6965. [2022-10-16 02:33:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 5449 states have (on average 1.2088456597540833) internal successors, (6587), 5549 states have internal predecessors, (6587), 983 states have call successors, (983), 532 states have call predecessors, (983), 532 states have return successors, (983), 883 states have call predecessors, (983), 983 states have call successors, (983) [2022-10-16 02:33:15,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 8553 transitions. [2022-10-16 02:33:15,282 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 8553 transitions. Word has length 393 [2022-10-16 02:33:15,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:33:15,283 INFO L495 AbstractCegarLoop]: Abstraction has 6965 states and 8553 transitions. [2022-10-16 02:33:15,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 7.169811320754717) internal successors, (380), 46 states have internal predecessors, (380), 18 states have call successors, (78), 13 states have call predecessors, (78), 19 states have return successors, (80), 21 states have call predecessors, (80), 18 states have call successors, (80) [2022-10-16 02:33:15,284 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 8553 transitions. [2022-10-16 02:33:15,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-10-16 02:33:15,298 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:33:15,299 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 9, 9, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:33:15,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 02:33:15,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:33:15,515 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:33:15,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:33:15,515 INFO L85 PathProgramCache]: Analyzing trace with hash -933006119, now seen corresponding path program 1 times [2022-10-16 02:33:15,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:33:15,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792453923] [2022-10-16 02:33:15,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:33:15,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:33:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:33:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:33:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:33:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:33:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:33:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:33:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:33:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:33:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:33:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:33:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:33:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:33:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:33:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:33:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:33:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:33:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:33:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:33:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:33:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-10-16 02:33:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-10-16 02:33:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-10-16 02:33:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-10-16 02:33:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-10-16 02:33:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-16 02:33:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-10-16 02:33:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-10-16 02:33:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-10-16 02:33:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-10-16 02:33:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-10-16 02:33:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-10-16 02:33:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-10-16 02:33:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-10-16 02:33:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-10-16 02:33:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-10-16 02:33:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-10-16 02:33:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-10-16 02:33:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-10-16 02:33:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:15,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1098 trivial. 0 not checked. [2022-10-16 02:33:15,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:33:15,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792453923] [2022-10-16 02:33:15,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792453923] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:33:15,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:33:15,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:33:15,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173908939] [2022-10-16 02:33:15,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:33:15,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:33:15,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:33:15,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:33:15,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:33:15,912 INFO L87 Difference]: Start difference. First operand 6965 states and 8553 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 5 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-10-16 02:33:16,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:33:16,356 INFO L93 Difference]: Finished difference Result 6995 states and 8577 transitions. [2022-10-16 02:33:16,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:33:16,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 5 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 404 [2022-10-16 02:33:16,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:33:16,367 INFO L225 Difference]: With dead ends: 6995 [2022-10-16 02:33:16,367 INFO L226 Difference]: Without dead ends: 6995 [2022-10-16 02:33:16,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:33:16,368 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 278 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:33:16,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 457 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:33:16,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6995 states. [2022-10-16 02:33:16,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6995 to 6941. [2022-10-16 02:33:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 5437 states have (on average 1.2070995034026117) internal successors, (6563), 5537 states have internal predecessors, (6563), 971 states have call successors, (971), 532 states have call predecessors, (971), 532 states have return successors, (971), 871 states have call predecessors, (971), 971 states have call successors, (971) [2022-10-16 02:33:16,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 8505 transitions. [2022-10-16 02:33:16,485 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 8505 transitions. Word has length 404 [2022-10-16 02:33:16,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:33:16,485 INFO L495 AbstractCegarLoop]: Abstraction has 6941 states and 8505 transitions. [2022-10-16 02:33:16,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 5 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-10-16 02:33:16,486 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 8505 transitions. [2022-10-16 02:33:16,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-10-16 02:33:16,498 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:33:16,498 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 9, 9, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:33:16,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-10-16 02:33:16,499 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:33:16,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:33:16,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1702042049, now seen corresponding path program 1 times [2022-10-16 02:33:16,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:33:16,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358234423] [2022-10-16 02:33:16,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:33:16,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:33:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:33:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:33:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:33:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:33:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:33:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:33:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:33:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:33:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:33:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:33:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:33:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:33:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:33:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:33:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:33:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:33:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:33:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:33:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:33:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 02:33:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-10-16 02:33:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-10-16 02:33:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-10-16 02:33:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-10-16 02:33:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-16 02:33:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-10-16 02:33:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-10-16 02:33:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-10-16 02:33:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-10-16 02:33:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-10-16 02:33:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-10-16 02:33:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-10-16 02:33:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-10-16 02:33:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-10-16 02:33:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-10-16 02:33:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-10-16 02:33:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-10-16 02:33:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-10-16 02:33:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 52 proven. 52 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2022-10-16 02:33:17,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:33:17,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358234423] [2022-10-16 02:33:17,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358234423] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:33:17,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077183303] [2022-10-16 02:33:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:33:17,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:33:17,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:33:17,530 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:33:17,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 02:33:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:17,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 1399 conjuncts, 70 conjunts are in the unsatisfiable core [2022-10-16 02:33:17,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:33:19,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 574 proven. 257 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-10-16 02:33:19,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:33:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 158 proven. 154 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2022-10-16 02:33:21,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077183303] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:33:21,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:33:21,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 27, 21] total 56 [2022-10-16 02:33:21,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401742150] [2022-10-16 02:33:21,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:33:21,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-10-16 02:33:21,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:33:21,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-10-16 02:33:21,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=2859, Unknown=0, NotChecked=0, Total=3080 [2022-10-16 02:33:21,158 INFO L87 Difference]: Start difference. First operand 6941 states and 8505 transitions. Second operand has 56 states, 56 states have (on average 7.642857142857143) internal successors, (428), 47 states have internal predecessors, (428), 16 states have call successors, (84), 11 states have call predecessors, (84), 25 states have return successors, (89), 24 states have call predecessors, (89), 16 states have call successors, (89)