./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/locks/test_locks_15-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 06:06:13,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 06:06:13,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 06:06:13,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 06:06:13,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 06:06:13,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 06:06:13,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 06:06:13,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 06:06:13,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 06:06:13,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 06:06:13,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 06:06:13,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 06:06:13,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 06:06:13,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 06:06:13,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 06:06:13,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 06:06:13,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 06:06:13,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 06:06:13,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 06:06:13,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 06:06:13,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 06:06:13,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 06:06:13,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 06:06:13,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 06:06:13,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 06:06:13,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 06:06:13,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 06:06:13,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 06:06:13,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 06:06:13,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 06:06:13,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 06:06:13,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 06:06:13,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 06:06:13,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 06:06:13,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 06:06:13,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 06:06:13,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 06:06:13,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 06:06:13,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 06:06:13,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 06:06:13,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 06:06:13,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-28 06:06:13,728 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 06:06:13,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 06:06:13,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 06:06:13,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 06:06:13,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 06:06:13,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 06:06:13,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 06:06:13,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 06:06:13,733 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 06:06:13,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 06:06:13,735 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 06:06:13,735 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 06:06:13,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 06:06:13,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 06:06:13,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 06:06:13,736 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-28 06:06:13,736 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-28 06:06:13,736 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-28 06:06:13,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 06:06:13,737 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-28 06:06:13,737 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 06:06:13,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 06:06:13,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 06:06:13,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 06:06:13,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 06:06:13,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 06:06:13,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 06:06:13,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 06:06:13,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 06:06:13,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 06:06:13,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2021-12-28 06:06:14,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 06:06:14,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 06:06:14,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 06:06:14,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 06:06:14,039 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 06:06:14,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_15-1.c [2021-12-28 06:06:14,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277a21f5b/a6509bbaf72c4809bf09de0a8bf96d98/FLAG82bab832c [2021-12-28 06:06:14,632 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 06:06:14,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c [2021-12-28 06:06:14,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277a21f5b/a6509bbaf72c4809bf09de0a8bf96d98/FLAG82bab832c [2021-12-28 06:06:15,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277a21f5b/a6509bbaf72c4809bf09de0a8bf96d98 [2021-12-28 06:06:15,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 06:06:15,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 06:06:15,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 06:06:15,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 06:06:15,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 06:06:15,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791a4a3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15, skipping insertion in model container [2021-12-28 06:06:15,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 06:06:15,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 06:06:15,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-12-28 06:06:15,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 06:06:15,262 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 06:06:15,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-12-28 06:06:15,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 06:06:15,342 INFO L208 MainTranslator]: Completed translation [2021-12-28 06:06:15,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15 WrapperNode [2021-12-28 06:06:15,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 06:06:15,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 06:06:15,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 06:06:15,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 06:06:15,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,394 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 195 [2021-12-28 06:06:15,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 06:06:15,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 06:06:15,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 06:06:15,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 06:06:15,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 06:06:15,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 06:06:15,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 06:06:15,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 06:06:15,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15" (1/1) ... [2021-12-28 06:06:15,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 06:06:15,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 06:06:15,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 06:06:15,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 06:06:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 06:06:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 06:06:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 06:06:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 06:06:15,616 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 06:06:15,618 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 06:06:15,866 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 06:06:15,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 06:06:15,871 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 06:06:15,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 06:06:15 BoogieIcfgContainer [2021-12-28 06:06:15,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 06:06:15,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 06:06:15,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 06:06:15,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 06:06:15,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 06:06:15" (1/3) ... [2021-12-28 06:06:15,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c66d434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 06:06:15, skipping insertion in model container [2021-12-28 06:06:15,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:15" (2/3) ... [2021-12-28 06:06:15,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c66d434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 06:06:15, skipping insertion in model container [2021-12-28 06:06:15,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 06:06:15" (3/3) ... [2021-12-28 06:06:15,896 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2021-12-28 06:06:15,901 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 06:06:15,901 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-28 06:06:15,940 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 06:06:15,945 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 06:06:15,945 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-28 06:06:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 55 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:15,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-28 06:06:15,965 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:15,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-28 06:06:15,966 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:15,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:15,971 INFO L85 PathProgramCache]: Analyzing trace with hash 28959891, now seen corresponding path program 1 times [2021-12-28 06:06:15,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 06:06:15,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120203829] [2021-12-28 06:06:15,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:15,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 06:06:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:16,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:16,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 06:06:16,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120203829] [2021-12-28 06:06:16,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120203829] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:16,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:16,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 06:06:16,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44360057] [2021-12-28 06:06:16,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:16,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 06:06:16,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 06:06:16,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 06:06:16,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-28 06:06:16,168 INFO L87 Difference]: Start difference. First operand has 56 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 55 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:16,185 INFO L93 Difference]: Finished difference Result 56 states and 100 transitions. [2021-12-28 06:06:16,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 06:06:16,187 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-28 06:06:16,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:16,195 INFO L225 Difference]: With dead ends: 56 [2021-12-28 06:06:16,195 INFO L226 Difference]: Without dead ends: 54 [2021-12-28 06:06:16,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-28 06:06:16,202 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 06:06:16,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:16,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-12-28 06:06:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-28 06:06:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.8846153846153846) internal successors, (98), 53 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2021-12-28 06:06:16,245 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 5 [2021-12-28 06:06:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:16,246 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2021-12-28 06:06:16,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,246 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2021-12-28 06:06:16,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-28 06:06:16,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:16,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-28 06:06:16,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 06:06:16,248 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:16,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:16,250 INFO L85 PathProgramCache]: Analyzing trace with hash 889700683, now seen corresponding path program 1 times [2021-12-28 06:06:16,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 06:06:16,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772726228] [2021-12-28 06:06:16,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:16,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 06:06:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:16,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:16,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 06:06:16,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772726228] [2021-12-28 06:06:16,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772726228] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:16,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:16,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 06:06:16,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088829657] [2021-12-28 06:06:16,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:16,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 06:06:16,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 06:06:16,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 06:06:16,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:16,317 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:16,330 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2021-12-28 06:06:16,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 06:06:16,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-28 06:06:16,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:16,333 INFO L225 Difference]: With dead ends: 53 [2021-12-28 06:06:16,333 INFO L226 Difference]: Without dead ends: 51 [2021-12-28 06:06:16,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:16,338 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 06:06:16,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:16,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-12-28 06:06:16,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-12-28 06:06:16,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.9) internal successors, (95), 50 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 95 transitions. [2021-12-28 06:06:16,346 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 95 transitions. Word has length 6 [2021-12-28 06:06:16,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:16,346 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 95 transitions. [2021-12-28 06:06:16,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2021-12-28 06:06:16,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 06:06:16,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:16,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:16,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 06:06:16,348 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:16,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:16,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1188553263, now seen corresponding path program 1 times [2021-12-28 06:06:16,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 06:06:16,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163856550] [2021-12-28 06:06:16,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:16,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 06:06:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:16,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 06:06:16,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163856550] [2021-12-28 06:06:16,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163856550] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:16,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:16,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 06:06:16,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538028739] [2021-12-28 06:06:16,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:16,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 06:06:16,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 06:06:16,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 06:06:16,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:16,413 INFO L87 Difference]: Start difference. First operand 51 states and 95 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:16,443 INFO L93 Difference]: Finished difference Result 99 states and 184 transitions. [2021-12-28 06:06:16,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 06:06:16,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-28 06:06:16,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:16,447 INFO L225 Difference]: With dead ends: 99 [2021-12-28 06:06:16,447 INFO L226 Difference]: Without dead ends: 99 [2021-12-28 06:06:16,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:16,452 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 76 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 06:06:16,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 240 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:16,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-12-28 06:06:16,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-12-28 06:06:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.90625) internal successors, (183), 96 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2021-12-28 06:06:16,463 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2021-12-28 06:06:16,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:16,463 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2021-12-28 06:06:16,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,463 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2021-12-28 06:06:16,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 06:06:16,464 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:16,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:16,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 06:06:16,465 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:16,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:16,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1188560455, now seen corresponding path program 1 times [2021-12-28 06:06:16,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 06:06:16,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708749342] [2021-12-28 06:06:16,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:16,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 06:06:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:16,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:16,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 06:06:16,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708749342] [2021-12-28 06:06:16,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708749342] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:16,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:16,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 06:06:16,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750479063] [2021-12-28 06:06:16,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:16,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 06:06:16,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 06:06:16,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 06:06:16,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:16,527 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:16,546 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2021-12-28 06:06:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 06:06:16,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-28 06:06:16,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:16,551 INFO L225 Difference]: With dead ends: 98 [2021-12-28 06:06:16,552 INFO L226 Difference]: Without dead ends: 98 [2021-12-28 06:06:16,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:16,553 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 14 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 184 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 [2021-12-28 06:06:16,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 184 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:16,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-12-28 06:06:16,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-12-28 06:06:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.8969072164948453) internal successors, (184), 97 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2021-12-28 06:06:16,563 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2021-12-28 06:06:16,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:16,563 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2021-12-28 06:06:16,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,564 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2021-12-28 06:06:16,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 06:06:16,565 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:16,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:16,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 06:06:16,565 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:16,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:16,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1112269327, now seen corresponding path program 1 times [2021-12-28 06:06:16,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 06:06:16,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403023470] [2021-12-28 06:06:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:16,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 06:06:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:16,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:16,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 06:06:16,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403023470] [2021-12-28 06:06:16,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403023470] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:16,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:16,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 06:06:16,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172744757] [2021-12-28 06:06:16,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:16,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 06:06:16,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 06:06:16,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 06:06:16,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:16,604 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:16,615 INFO L93 Difference]: Finished difference Result 137 states and 251 transitions. [2021-12-28 06:06:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 06:06:16,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-28 06:06:16,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:16,617 INFO L225 Difference]: With dead ends: 137 [2021-12-28 06:06:16,617 INFO L226 Difference]: Without dead ends: 137 [2021-12-28 06:06:16,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:16,619 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 76 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 06:06:16,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 134 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:16,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-12-28 06:06:16,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2021-12-28 06:06:16,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.8656716417910448) internal successors, (250), 134 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2021-12-28 06:06:16,629 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2021-12-28 06:06:16,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:16,629 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2021-12-28 06:06:16,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,630 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2021-12-28 06:06:16,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 06:06:16,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:16,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:16,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 06:06:16,631 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:16,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:16,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1112262135, now seen corresponding path program 1 times [2021-12-28 06:06:16,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 06:06:16,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603420835] [2021-12-28 06:06:16,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:16,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 06:06:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:16,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 06:06:16,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603420835] [2021-12-28 06:06:16,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603420835] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:16,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:16,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 06:06:16,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363701989] [2021-12-28 06:06:16,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:16,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 06:06:16,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 06:06:16,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 06:06:16,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:16,663 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:16,673 INFO L93 Difference]: Finished difference Result 135 states and 244 transitions. [2021-12-28 06:06:16,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 06:06:16,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-28 06:06:16,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:16,676 INFO L225 Difference]: With dead ends: 135 [2021-12-28 06:06:16,676 INFO L226 Difference]: Without dead ends: 135 [2021-12-28 06:06:16,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:16,677 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 74 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 06:06:16,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 212 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:16,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-12-28 06:06:16,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2021-12-28 06:06:16,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.8409090909090908) internal successors, (243), 132 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2021-12-28 06:06:16,688 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2021-12-28 06:06:16,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:16,688 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2021-12-28 06:06:16,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:16,688 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2021-12-28 06:06:16,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 06:06:16,689 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:16,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:16,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 06:06:16,690 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:16,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:16,690 INFO L85 PathProgramCache]: Analyzing trace with hash -476078575, now seen corresponding path program 1 times [2021-12-28 06:06:16,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 06:06:16,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511230324] [2021-12-28 06:06:16,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:16,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 06:06:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 06:06:16,709 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 06:06:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 06:06:16,763 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 06:06:16,763 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-28 06:06:16,764 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-12-28 06:06:16,765 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-12-28 06:06:16,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 06:06:16,768 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:16,772 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 06:06:16,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 06:06:16 BoogieIcfgContainer [2021-12-28 06:06:16,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 06:06:16,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 06:06:16,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 06:06:16,821 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 06:06:16,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 06:06:15" (3/4) ... [2021-12-28 06:06:16,823 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-28 06:06:16,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 06:06:16,823 INFO L158 Benchmark]: Toolchain (without parser) took 1778.84ms. Allocated memory was 50.3MB in the beginning and 79.7MB in the end (delta: 29.4MB). Free memory was 27.9MB in the beginning and 59.8MB in the end (delta: -32.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 06:06:16,824 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 33.2MB in the beginning and 33.1MB in the end (delta: 45.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 06:06:16,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.49ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 27.6MB in the beginning and 47.1MB in the end (delta: -19.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-28 06:06:16,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.74ms. Allocated memory is still 62.9MB. Free memory was 46.9MB in the beginning and 45.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 06:06:16,824 INFO L158 Benchmark]: Boogie Preprocessor took 47.51ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 43.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 06:06:16,824 INFO L158 Benchmark]: RCFGBuilder took 444.89ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 45.8MB in the end (delta: -2.3MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2021-12-28 06:06:16,824 INFO L158 Benchmark]: TraceAbstraction took 930.04ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 45.3MB in the beginning and 60.2MB in the end (delta: -14.9MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2021-12-28 06:06:16,825 INFO L158 Benchmark]: Witness Printer took 2.62ms. Allocated memory is still 79.7MB. Free memory was 60.2MB in the beginning and 59.8MB in the end (delta: 369.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 06:06:16,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 33.2MB in the beginning and 33.1MB in the end (delta: 45.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.49ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 27.6MB in the beginning and 47.1MB in the end (delta: -19.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.74ms. Allocated memory is still 62.9MB. Free memory was 46.9MB in the beginning and 45.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.51ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 43.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 444.89ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 45.8MB in the end (delta: -2.3MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 930.04ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 45.3MB in the beginning and 60.2MB in the end (delta: -14.9MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Witness Printer took 2.62ms. Allocated memory is still 79.7MB. Free memory was 60.2MB in the beginning and 59.8MB in the end (delta: 369.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 233]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 233. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; VAL [p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L93] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L97] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L101] COND FALSE !(p3 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L105] COND TRUE p4 != 0 [L106] lk4 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L109] COND TRUE p5 != 0 [L110] lk5 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L113] COND TRUE p6 != 0 [L114] lk6 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L117] COND TRUE p7 != 0 [L118] lk7 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L121] COND TRUE p8 != 0 [L122] lk8 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L125] COND TRUE p9 != 0 [L126] lk9 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L129] COND TRUE p10 != 0 [L130] lk10 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L133] COND FALSE !(p11 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L137] COND TRUE p12 != 0 [L138] lk12 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L141] COND TRUE p13 != 0 [L142] lk13 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L145] COND TRUE p14 != 0 [L146] lk14 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L149] COND TRUE p15 != 0 [L150] lk15 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L155] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L160] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L233] reach_error() VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 332 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 332 mSDsluCounter, 967 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 303 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 664 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-28 06:06:16,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/locks/test_locks_15-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 06:06:18,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 06:06:18,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 06:06:18,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 06:06:18,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 06:06:18,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 06:06:18,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 06:06:18,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 06:06:18,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 06:06:18,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 06:06:18,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 06:06:18,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 06:06:18,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 06:06:18,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 06:06:18,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 06:06:18,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 06:06:18,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 06:06:18,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 06:06:18,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 06:06:18,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 06:06:18,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 06:06:18,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 06:06:18,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 06:06:18,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 06:06:18,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 06:06:18,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 06:06:18,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 06:06:18,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 06:06:18,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 06:06:18,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 06:06:18,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 06:06:18,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 06:06:18,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 06:06:18,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 06:06:18,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 06:06:18,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 06:06:18,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 06:06:18,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 06:06:18,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 06:06:18,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 06:06:18,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 06:06:18,666 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-28 06:06:18,687 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 06:06:18,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 06:06:18,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 06:06:18,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 06:06:18,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 06:06:18,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 06:06:18,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 06:06:18,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 06:06:18,691 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 06:06:18,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 06:06:18,692 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 06:06:18,692 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 06:06:18,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 06:06:18,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 06:06:18,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 06:06:18,693 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-28 06:06:18,693 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-28 06:06:18,693 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-28 06:06:18,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 06:06:18,693 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-28 06:06:18,694 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-28 06:06:18,694 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-28 06:06:18,694 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 06:06:18,694 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 06:06:18,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 06:06:18,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 06:06:18,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 06:06:18,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 06:06:18,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 06:06:18,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 06:06:18,695 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-28 06:06:18,695 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-28 06:06:18,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-28 06:06:18,696 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2021-12-28 06:06:18,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 06:06:18,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 06:06:18,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 06:06:18,983 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 06:06:18,984 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 06:06:18,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_15-1.c [2021-12-28 06:06:19,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4920ea5/db506f534ead4456b2578fd2c7c5031e/FLAG1311a3fb2 [2021-12-28 06:06:19,475 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 06:06:19,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c [2021-12-28 06:06:19,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4920ea5/db506f534ead4456b2578fd2c7c5031e/FLAG1311a3fb2 [2021-12-28 06:06:19,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4920ea5/db506f534ead4456b2578fd2c7c5031e [2021-12-28 06:06:19,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 06:06:19,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 06:06:19,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 06:06:19,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 06:06:19,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 06:06:19,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36cdbeca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19, skipping insertion in model container [2021-12-28 06:06:19,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 06:06:19,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 06:06:19,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-12-28 06:06:19,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 06:06:19,732 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 06:06:19,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-12-28 06:06:19,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 06:06:19,811 INFO L208 MainTranslator]: Completed translation [2021-12-28 06:06:19,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19 WrapperNode [2021-12-28 06:06:19,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 06:06:19,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 06:06:19,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 06:06:19,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 06:06:19,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,854 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 179 [2021-12-28 06:06:19,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 06:06:19,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 06:06:19,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 06:06:19,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 06:06:19,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 06:06:19,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 06:06:19,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 06:06:19,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 06:06:19,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19" (1/1) ... [2021-12-28 06:06:19,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 06:06:19,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 06:06:19,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 06:06:19,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 06:06:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 06:06:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 06:06:19,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 06:06:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-28 06:06:20,040 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 06:06:20,041 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 06:06:20,256 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 06:06:20,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 06:06:20,261 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 06:06:20,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 06:06:20 BoogieIcfgContainer [2021-12-28 06:06:20,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 06:06:20,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 06:06:20,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 06:06:20,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 06:06:20,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 06:06:19" (1/3) ... [2021-12-28 06:06:20,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3824695e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 06:06:20, skipping insertion in model container [2021-12-28 06:06:20,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 06:06:19" (2/3) ... [2021-12-28 06:06:20,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3824695e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 06:06:20, skipping insertion in model container [2021-12-28 06:06:20,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 06:06:20" (3/3) ... [2021-12-28 06:06:20,269 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2021-12-28 06:06:20,273 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 06:06:20,273 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-28 06:06:20,308 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 06:06:20,314 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 06:06:20,314 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-28 06:06:20,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 55 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:20,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-28 06:06:20,348 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:20,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-28 06:06:20,349 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:20,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:20,353 INFO L85 PathProgramCache]: Analyzing trace with hash 28959891, now seen corresponding path program 1 times [2021-12-28 06:06:20,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 06:06:20,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010648179] [2021-12-28 06:06:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:20,361 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 06:06:20,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 06:06:20,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 06:06:20,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-28 06:06:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:20,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-28 06:06:20,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 06:06:20,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:20,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 06:06:20,431 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-28 06:06:20,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010648179] [2021-12-28 06:06:20,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010648179] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:20,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:20,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 06:06:20,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523769879] [2021-12-28 06:06:20,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:20,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 06:06:20,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-28 06:06:20,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 06:06:20,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-28 06:06:20,466 INFO L87 Difference]: Start difference. First operand has 56 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 55 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:20,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:20,484 INFO L93 Difference]: Finished difference Result 56 states and 100 transitions. [2021-12-28 06:06:20,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 06:06:20,486 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-28 06:06:20,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:20,492 INFO L225 Difference]: With dead ends: 56 [2021-12-28 06:06:20,492 INFO L226 Difference]: Without dead ends: 54 [2021-12-28 06:06:20,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-28 06:06:20,497 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 06:06:20,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:20,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-12-28 06:06:20,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-28 06:06:20,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.8846153846153846) internal successors, (98), 53 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:20,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2021-12-28 06:06:20,530 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 5 [2021-12-28 06:06:20,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:20,530 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2021-12-28 06:06:20,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2021-12-28 06:06:20,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-28 06:06:20,530 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:20,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-28 06:06:20,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-28 06:06:20,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 06:06:20,737 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:20,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:20,738 INFO L85 PathProgramCache]: Analyzing trace with hash 889700683, now seen corresponding path program 1 times [2021-12-28 06:06:20,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 06:06:20,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435849153] [2021-12-28 06:06:20,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:20,739 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 06:06:20,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 06:06:20,749 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 06:06:20,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-28 06:06:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:20,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 06:06:20,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 06:06:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:20,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 06:06:20,815 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-28 06:06:20,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435849153] [2021-12-28 06:06:20,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435849153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:20,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:20,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 06:06:20,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294990678] [2021-12-28 06:06:20,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:20,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 06:06:20,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-28 06:06:20,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 06:06:20,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:20,818 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:20,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:20,829 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2021-12-28 06:06:20,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 06:06:20,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-28 06:06:20,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:20,831 INFO L225 Difference]: With dead ends: 53 [2021-12-28 06:06:20,831 INFO L226 Difference]: Without dead ends: 51 [2021-12-28 06:06:20,832 INFO L932 BasicCegarLoop]: 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 [2021-12-28 06:06:20,833 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 06:06:20,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:20,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-12-28 06:06:20,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-12-28 06:06:20,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.9) internal successors, (95), 50 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:20,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 95 transitions. [2021-12-28 06:06:20,843 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 95 transitions. Word has length 6 [2021-12-28 06:06:20,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:20,844 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 95 transitions. [2021-12-28 06:06:20,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2021-12-28 06:06:20,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 06:06:20,846 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:20,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:20,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-28 06:06:21,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 06:06:21,056 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:21,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:21,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1188553263, now seen corresponding path program 1 times [2021-12-28 06:06:21,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 06:06:21,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591765016] [2021-12-28 06:06:21,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:21,057 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 06:06:21,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 06:06:21,059 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 06:06:21,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-28 06:06:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:21,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 06:06:21,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 06:06:21,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:21,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 06:06:21,177 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-28 06:06:21,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591765016] [2021-12-28 06:06:21,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591765016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:21,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:21,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 06:06:21,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554769789] [2021-12-28 06:06:21,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:21,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 06:06:21,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-28 06:06:21,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 06:06:21,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:21,179 INFO L87 Difference]: Start difference. First operand 51 states and 95 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:21,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:21,204 INFO L93 Difference]: Finished difference Result 99 states and 184 transitions. [2021-12-28 06:06:21,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 06:06:21,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-28 06:06:21,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:21,206 INFO L225 Difference]: With dead ends: 99 [2021-12-28 06:06:21,207 INFO L226 Difference]: Without dead ends: 99 [2021-12-28 06:06:21,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:21,210 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 76 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 06:06:21,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 240 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:21,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-12-28 06:06:21,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-12-28 06:06:21,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.90625) internal successors, (183), 96 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:21,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2021-12-28 06:06:21,226 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2021-12-28 06:06:21,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:21,227 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2021-12-28 06:06:21,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2021-12-28 06:06:21,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 06:06:21,229 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:21,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:21,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-28 06:06:21,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 06:06:21,436 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:21,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:21,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1188560455, now seen corresponding path program 1 times [2021-12-28 06:06:21,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 06:06:21,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374726316] [2021-12-28 06:06:21,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:21,437 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 06:06:21,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 06:06:21,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 06:06:21,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-28 06:06:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:21,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 06:06:21,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 06:06:21,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:21,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 06:06:21,550 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-28 06:06:21,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374726316] [2021-12-28 06:06:21,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374726316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:21,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:21,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 06:06:21,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127224245] [2021-12-28 06:06:21,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:21,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 06:06:21,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-28 06:06:21,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 06:06:21,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:21,553 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:21,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:21,574 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2021-12-28 06:06:21,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 06:06:21,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-28 06:06:21,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:21,576 INFO L225 Difference]: With dead ends: 98 [2021-12-28 06:06:21,580 INFO L226 Difference]: Without dead ends: 98 [2021-12-28 06:06:21,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:21,581 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 14 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 184 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 [2021-12-28 06:06:21,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 184 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:21,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-12-28 06:06:21,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-12-28 06:06:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.8969072164948453) internal successors, (184), 97 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:21,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2021-12-28 06:06:21,591 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2021-12-28 06:06:21,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:21,592 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2021-12-28 06:06:21,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:21,592 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2021-12-28 06:06:21,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 06:06:21,594 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:21,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:21,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-28 06:06:21,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 06:06:21,801 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:21,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:21,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1112269327, now seen corresponding path program 1 times [2021-12-28 06:06:21,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 06:06:21,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111965239] [2021-12-28 06:06:21,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:21,802 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 06:06:21,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 06:06:21,803 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 06:06:21,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-28 06:06:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:21,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 06:06:21,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 06:06:21,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:21,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 06:06:21,918 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-28 06:06:21,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111965239] [2021-12-28 06:06:21,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111965239] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:21,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:21,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 06:06:21,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664313104] [2021-12-28 06:06:21,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:21,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 06:06:21,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-28 06:06:21,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 06:06:21,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:21,926 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:21,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:21,938 INFO L93 Difference]: Finished difference Result 137 states and 251 transitions. [2021-12-28 06:06:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 06:06:21,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-28 06:06:21,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:21,945 INFO L225 Difference]: With dead ends: 137 [2021-12-28 06:06:21,945 INFO L226 Difference]: Without dead ends: 137 [2021-12-28 06:06:21,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:21,946 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 76 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 06:06:21,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 134 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:21,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-12-28 06:06:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2021-12-28 06:06:21,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.8656716417910448) internal successors, (250), 134 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:21,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2021-12-28 06:06:21,954 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2021-12-28 06:06:21,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:21,954 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2021-12-28 06:06:21,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:21,954 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2021-12-28 06:06:21,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 06:06:21,956 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:21,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:21,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-28 06:06:22,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 06:06:22,166 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:22,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:22,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1112262135, now seen corresponding path program 1 times [2021-12-28 06:06:22,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 06:06:22,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095652371] [2021-12-28 06:06:22,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:22,167 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 06:06:22,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 06:06:22,168 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 06:06:22,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-28 06:06:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 06:06:22,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 06:06:22,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 06:06:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 06:06:22,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 06:06:22,252 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-28 06:06:22,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095652371] [2021-12-28 06:06:22,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095652371] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 06:06:22,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 06:06:22,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 06:06:22,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413898299] [2021-12-28 06:06:22,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 06:06:22,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 06:06:22,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-28 06:06:22,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 06:06:22,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:22,256 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:22,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 06:06:22,268 INFO L93 Difference]: Finished difference Result 135 states and 244 transitions. [2021-12-28 06:06:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 06:06:22,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-28 06:06:22,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 06:06:22,269 INFO L225 Difference]: With dead ends: 135 [2021-12-28 06:06:22,269 INFO L226 Difference]: Without dead ends: 135 [2021-12-28 06:06:22,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 06:06:22,270 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 74 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 06:06:22,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 212 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 06:06:22,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-12-28 06:06:22,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2021-12-28 06:06:22,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.8409090909090908) internal successors, (243), 132 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:22,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2021-12-28 06:06:22,294 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2021-12-28 06:06:22,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 06:06:22,294 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2021-12-28 06:06:22,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 06:06:22,295 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2021-12-28 06:06:22,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 06:06:22,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 06:06:22,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:22,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-28 06:06:22,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 06:06:22,500 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-28 06:06:22,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 06:06:22,500 INFO L85 PathProgramCache]: Analyzing trace with hash -476078575, now seen corresponding path program 1 times [2021-12-28 06:06:22,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 06:06:22,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765469440] [2021-12-28 06:06:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 06:06:22,501 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 06:06:22,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 06:06:22,502 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 06:06:22,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-28 06:06:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 06:06:22,532 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 06:06:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 06:06:22,579 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-28 06:06:22,579 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-28 06:06:22,580 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-12-28 06:06:22,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-12-28 06:06:22,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-28 06:06:22,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 06:06:22,794 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-12-28 06:06:22,796 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 06:06:22,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 06:06:22 BoogieIcfgContainer [2021-12-28 06:06:22,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 06:06:22,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 06:06:22,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 06:06:22,834 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 06:06:22,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 06:06:20" (3/4) ... [2021-12-28 06:06:22,836 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-28 06:06:22,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 06:06:22,838 INFO L158 Benchmark]: Toolchain (without parser) took 3321.32ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 49.9MB in the beginning and 72.0MB in the end (delta: -22.1MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-12-28 06:06:22,838 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 50.4MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 06:06:22,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.40ms. Allocated memory is still 69.2MB. Free memory was 49.8MB in the beginning and 51.6MB in the end (delta: -1.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-28 06:06:22,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.84ms. Allocated memory is still 69.2MB. Free memory was 51.3MB in the beginning and 49.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 06:06:22,839 INFO L158 Benchmark]: Boogie Preprocessor took 43.68ms. Allocated memory is still 69.2MB. Free memory was 49.6MB in the beginning and 48.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 06:06:22,839 INFO L158 Benchmark]: RCFGBuilder took 362.68ms. Allocated memory is still 69.2MB. Free memory was 48.0MB in the beginning and 35.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-28 06:06:22,839 INFO L158 Benchmark]: TraceAbstraction took 2568.58ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 34.5MB in the beginning and 72.0MB in the end (delta: -37.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 06:06:22,839 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 100.7MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 06:06:22,840 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 50.4MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.40ms. Allocated memory is still 69.2MB. Free memory was 49.8MB in the beginning and 51.6MB in the end (delta: -1.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.84ms. Allocated memory is still 69.2MB. Free memory was 51.3MB in the beginning and 49.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.68ms. Allocated memory is still 69.2MB. Free memory was 49.6MB in the beginning and 48.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.68ms. Allocated memory is still 69.2MB. Free memory was 48.0MB in the beginning and 35.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2568.58ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 34.5MB in the beginning and 72.0MB in the end (delta: -37.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 100.7MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 233]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 233. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0] [L93] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0] [L97] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0] [L101] COND FALSE !(p3 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0] [L105] COND TRUE p4 != 0 [L106] lk4 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2] [L109] COND TRUE p5 != 0 [L110] lk5 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2] [L113] COND TRUE p6 != 0 [L114] lk6 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2] [L117] COND TRUE p7 != 0 [L118] lk7 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2] [L121] COND TRUE p8 != 0 [L122] lk8 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2] [L125] COND TRUE p9 != 0 [L126] lk9 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L129] COND TRUE p10 != 0 [L130] lk10 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L133] COND FALSE !(p11 != 0) VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L137] COND TRUE p12 != 0 [L138] lk12 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L141] COND TRUE p13 != 0 [L142] lk13 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L145] COND TRUE p14 != 0 [L146] lk14 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L149] COND TRUE p15 != 0 [L150] lk15 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p15=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L155] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p15=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L160] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p15=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L233] reach_error() VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p15=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 332 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 332 mSDsluCounter, 967 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 303 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 664 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 287 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-28 06:06:22,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample