./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro --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 a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:33:48,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:33:48,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:33:48,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:33:48,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:33:48,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:33:48,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:33:48,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:33:48,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:33:48,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:33:48,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:33:48,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:33:48,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:33:48,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:33:48,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:33:48,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:33:48,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:33:48,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:33:48,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:33:48,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:33:48,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:33:48,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:33:48,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:33:48,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:33:48,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:33:48,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:33:48,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:33:48,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:33:48,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:33:48,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:33:48,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:33:48,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:33:48,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:33:48,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:33:48,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:33:48,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:33:48,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:33:48,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:33:48,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:33:48,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:33:48,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:33:48,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 18:33:48,338 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:33:48,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:33:48,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:33:48,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:33:48,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:33:48,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:33:48,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:33:48,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:33:48,352 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:33:48,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:33:48,353 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:33:48,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:33:48,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:33:48,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:33:48,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:33:48,354 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 18:33:48,355 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 18:33:48,355 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 18:33:48,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:33:48,355 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:33:48,356 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:33:48,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:33:48,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:33:48,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:33:48,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:33:48,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:33:48,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:33:48,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:33:48,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:33:48,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:33:48,360 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 [2022-11-18 18:33:48,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:33:48,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:33:48,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:33:48,680 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:33:48,681 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:33:48,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-11-18 18:33:48,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/data/5910bdd73/a6f980981103493c89211b4dd81b3c9c/FLAG897bd0cf2 [2022-11-18 18:33:49,385 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:33:49,389 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-11-18 18:33:49,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/data/5910bdd73/a6f980981103493c89211b4dd81b3c9c/FLAG897bd0cf2 [2022-11-18 18:33:49,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/data/5910bdd73/a6f980981103493c89211b4dd81b3c9c [2022-11-18 18:33:49,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:33:49,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:33:49,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:33:49,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:33:49,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:33:49,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:33:49" (1/1) ... [2022-11-18 18:33:49,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@459ba912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:49, skipping insertion in model container [2022-11-18 18:33:49,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:33:49" (1/1) ... [2022-11-18 18:33:49,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:33:49,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:33:49,942 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2022-11-18 18:33:50,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:33:50,198 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:33:50,214 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2022-11-18 18:33:50,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:33:50,320 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:33:50,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50 WrapperNode [2022-11-18 18:33:50,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:33:50,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:33:50,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:33:50,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:33:50,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (1/1) ... [2022-11-18 18:33:50,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (1/1) ... [2022-11-18 18:33:50,403 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-11-18 18:33:50,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:33:50,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:33:50,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:33:50,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:33:50,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (1/1) ... [2022-11-18 18:33:50,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (1/1) ... [2022-11-18 18:33:50,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (1/1) ... [2022-11-18 18:33:50,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (1/1) ... [2022-11-18 18:33:50,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (1/1) ... [2022-11-18 18:33:50,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (1/1) ... [2022-11-18 18:33:50,454 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (1/1) ... [2022-11-18 18:33:50,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (1/1) ... [2022-11-18 18:33:50,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:33:50,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:33:50,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:33:50,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:33:50,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (1/1) ... [2022-11-18 18:33:50,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:33:50,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:33:50,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:33:50,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:33:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:33:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:33:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 18:33:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:33:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:33:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 18:33:50,552 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 18:33:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:33:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:33:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:33:50,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:33:50,554 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:33:50,757 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:33:50,759 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:33:51,043 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:33:51,052 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:33:51,052 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:33:51,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:33:51 BoogieIcfgContainer [2022-11-18 18:33:51,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:33:51,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:33:51,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:33:51,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:33:51,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:33:49" (1/3) ... [2022-11-18 18:33:51,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27393ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:33:51, skipping insertion in model container [2022-11-18 18:33:51,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:50" (2/3) ... [2022-11-18 18:33:51,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27393ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:33:51, skipping insertion in model container [2022-11-18 18:33:51,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:33:51" (3/3) ... [2022-11-18 18:33:51,066 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-11-18 18:33:51,088 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:33:51,089 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-18 18:33:51,089 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:33:51,163 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 18:33:51,207 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 18:33:51,223 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 108 transitions, 224 flow [2022-11-18 18:33:51,227 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 108 transitions, 224 flow [2022-11-18 18:33:51,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 108 transitions, 224 flow [2022-11-18 18:33:51,295 INFO L130 PetriNetUnfolder]: 2/107 cut-off events. [2022-11-18 18:33:51,295 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:33:51,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 107 events. 2/107 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-18 18:33:51,303 INFO L119 LiptonReduction]: Number of co-enabled transitions 1258 [2022-11-18 18:33:56,040 INFO L134 LiptonReduction]: Checked pairs total: 5522 [2022-11-18 18:33:56,041 INFO L136 LiptonReduction]: Total number of compositions: 106 [2022-11-18 18:33:56,057 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 34 transitions, 76 flow [2022-11-18 18:33:56,105 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 171 states, 164 states have (on average 2.024390243902439) internal successors, (332), 170 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:56,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:33:56,147 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6af2f5bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:33:56,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 18:33:56,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 164 states have (on average 2.024390243902439) internal successors, (332), 170 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:56,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 18:33:56,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:56,159 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 18:33:56,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2022-11-18 18:33:56,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:56,168 INFO L85 PathProgramCache]: Analyzing trace with hash 378, now seen corresponding path program 1 times [2022-11-18 18:33:56,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:56,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242232644] [2022-11-18 18:33:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:56,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:56,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:56,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:56,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242232644] [2022-11-18 18:33:56,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242232644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:56,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:56,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 18:33:56,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550858692] [2022-11-18 18:33:56,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:56,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:33:56,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:56,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:33:56,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:33:56,362 INFO L87 Difference]: Start difference. First operand has 171 states, 164 states have (on average 2.024390243902439) internal successors, (332), 170 states have internal predecessors, (332), 0 states have call successors, (0), 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, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:56,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:56,450 INFO L93 Difference]: Finished difference Result 169 states and 308 transitions. [2022-11-18 18:33:56,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:33:56,454 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 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 1 [2022-11-18 18:33:56,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:56,467 INFO L225 Difference]: With dead ends: 169 [2022-11-18 18:33:56,471 INFO L226 Difference]: Without dead ends: 169 [2022-11-18 18:33:56,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:33:56,479 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:56,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:33:56,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-18 18:33:56,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-11-18 18:33:56,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.8780487804878048) internal successors, (308), 168 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:56,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 308 transitions. [2022-11-18 18:33:56,562 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 308 transitions. Word has length 1 [2022-11-18 18:33:56,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:56,563 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 308 transitions. [2022-11-18 18:33:56,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:56,563 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 308 transitions. [2022-11-18 18:33:56,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 18:33:56,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:56,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 18:33:56,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:33:56,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2022-11-18 18:33:56,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:56,565 INFO L85 PathProgramCache]: Analyzing trace with hash 355743596, now seen corresponding path program 1 times [2022-11-18 18:33:56,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:56,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206686897] [2022-11-18 18:33:56,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:56,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:56,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:56,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:56,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206686897] [2022-11-18 18:33:56,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206686897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:56,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:56,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:33:56,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470200245] [2022-11-18 18:33:56,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:56,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:33:56,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:56,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:33:56,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:33:56,815 INFO L87 Difference]: Start difference. First operand 169 states and 308 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:56,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:56,903 INFO L93 Difference]: Finished difference Result 161 states and 284 transitions. [2022-11-18 18:33:56,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:33:56,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 18:33:56,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:56,907 INFO L225 Difference]: With dead ends: 161 [2022-11-18 18:33:56,909 INFO L226 Difference]: Without dead ends: 161 [2022-11-18 18:33:56,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:33:56,912 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:56,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 11 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:33:56,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-18 18:33:56,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-18 18:33:56,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.8205128205128205) internal successors, (284), 160 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:56,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 284 transitions. [2022-11-18 18:33:56,934 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 284 transitions. Word has length 5 [2022-11-18 18:33:56,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:56,935 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 284 transitions. [2022-11-18 18:33:56,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:56,938 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 284 transitions. [2022-11-18 18:33:56,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 18:33:56,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:56,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:56,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:33:56,940 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2022-11-18 18:33:56,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:56,941 INFO L85 PathProgramCache]: Analyzing trace with hash -987128848, now seen corresponding path program 1 times [2022-11-18 18:33:56,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:56,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999604835] [2022-11-18 18:33:56,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:56,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:57,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:57,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:57,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999604835] [2022-11-18 18:33:57,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999604835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:57,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:57,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:33:57,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751588780] [2022-11-18 18:33:57,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:57,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:33:57,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:57,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:33:57,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:33:57,207 INFO L87 Difference]: Start difference. First operand 161 states and 284 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:57,309 INFO L93 Difference]: Finished difference Result 163 states and 261 transitions. [2022-11-18 18:33:57,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:33:57,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-18 18:33:57,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:57,315 INFO L225 Difference]: With dead ends: 163 [2022-11-18 18:33:57,315 INFO L226 Difference]: Without dead ends: 163 [2022-11-18 18:33:57,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:33:57,321 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:57,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:33:57,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-18 18:33:57,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 140. [2022-11-18 18:33:57,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 136 states have (on average 1.75) internal successors, (238), 139 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 238 transitions. [2022-11-18 18:33:57,343 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 238 transitions. Word has length 9 [2022-11-18 18:33:57,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:57,344 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 238 transitions. [2022-11-18 18:33:57,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 238 transitions. [2022-11-18 18:33:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 18:33:57,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:57,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:57,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:33:57,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2022-11-18 18:33:57,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:57,346 INFO L85 PathProgramCache]: Analyzing trace with hash 74553428, now seen corresponding path program 1 times [2022-11-18 18:33:57,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:57,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660463405] [2022-11-18 18:33:57,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:57,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:57,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:57,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660463405] [2022-11-18 18:33:57,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660463405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:57,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:57,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:33:57,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589642000] [2022-11-18 18:33:57,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:57,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:33:57,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:57,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:33:57,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:33:57,512 INFO L87 Difference]: Start difference. First operand 140 states and 238 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:57,546 INFO L93 Difference]: Finished difference Result 129 states and 217 transitions. [2022-11-18 18:33:57,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:33:57,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2022-11-18 18:33:57,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:57,548 INFO L225 Difference]: With dead ends: 129 [2022-11-18 18:33:57,548 INFO L226 Difference]: Without dead ends: 129 [2022-11-18 18:33:57,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:33:57,551 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:57,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 7 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:33:57,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-18 18:33:57,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2022-11-18 18:33:57,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 126 states have (on average 1.7222222222222223) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 217 transitions. [2022-11-18 18:33:57,574 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 217 transitions. Word has length 12 [2022-11-18 18:33:57,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:57,575 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 217 transitions. [2022-11-18 18:33:57,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,575 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 217 transitions. [2022-11-18 18:33:57,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 18:33:57,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:57,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:57,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:33:57,578 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2022-11-18 18:33:57,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:57,579 INFO L85 PathProgramCache]: Analyzing trace with hash 74553429, now seen corresponding path program 1 times [2022-11-18 18:33:57,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:57,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735148278] [2022-11-18 18:33:57,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:57,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:57,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:57,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:57,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735148278] [2022-11-18 18:33:57,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735148278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:57,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:57,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:33:57,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293541449] [2022-11-18 18:33:57,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:57,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:33:57,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:57,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:33:57,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:33:57,696 INFO L87 Difference]: Start difference. First operand 129 states and 217 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:57,726 INFO L93 Difference]: Finished difference Result 118 states and 196 transitions. [2022-11-18 18:33:57,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:33:57,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2022-11-18 18:33:57,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:57,729 INFO L225 Difference]: With dead ends: 118 [2022-11-18 18:33:57,729 INFO L226 Difference]: Without dead ends: 118 [2022-11-18 18:33:57,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:33:57,736 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:57,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:33:57,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-18 18:33:57,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-18 18:33:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 1.6896551724137931) internal successors, (196), 117 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 196 transitions. [2022-11-18 18:33:57,745 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 196 transitions. Word has length 12 [2022-11-18 18:33:57,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:57,746 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 196 transitions. [2022-11-18 18:33:57,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,746 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 196 transitions. [2022-11-18 18:33:57,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 18:33:57,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:57,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:57,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:33:57,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2022-11-18 18:33:57,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:57,751 INFO L85 PathProgramCache]: Analyzing trace with hash -981931129, now seen corresponding path program 1 times [2022-11-18 18:33:57,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:57,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402626267] [2022-11-18 18:33:57,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:57,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:57,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:57,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402626267] [2022-11-18 18:33:57,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402626267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:57,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:57,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:33:57,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178539691] [2022-11-18 18:33:57,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:57,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:33:57,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:57,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:33:57,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:33:57,867 INFO L87 Difference]: Start difference. First operand 118 states and 196 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:57,940 INFO L93 Difference]: Finished difference Result 145 states and 230 transitions. [2022-11-18 18:33:57,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:33:57,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-11-18 18:33:57,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:57,942 INFO L225 Difference]: With dead ends: 145 [2022-11-18 18:33:57,942 INFO L226 Difference]: Without dead ends: 143 [2022-11-18 18:33:57,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:33:57,944 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:57,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:33:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-11-18 18:33:57,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 123. [2022-11-18 18:33:57,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 120 states have (on average 1.6333333333333333) internal successors, (196), 122 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 196 transitions. [2022-11-18 18:33:57,950 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 196 transitions. Word has length 14 [2022-11-18 18:33:57,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:57,950 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 196 transitions. [2022-11-18 18:33:57,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 196 transitions. [2022-11-18 18:33:57,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 18:33:57,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:57,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:57,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:33:57,956 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2022-11-18 18:33:57,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:57,957 INFO L85 PathProgramCache]: Analyzing trace with hash 438549941, now seen corresponding path program 2 times [2022-11-18 18:33:57,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:57,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45865103] [2022-11-18 18:33:57,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:57,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:58,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:58,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:58,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45865103] [2022-11-18 18:33:58,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45865103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:58,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:58,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:33:58,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345295734] [2022-11-18 18:33:58,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:58,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:33:58,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:58,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:33:58,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:33:58,213 INFO L87 Difference]: Start difference. First operand 123 states and 196 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:58,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:58,301 INFO L93 Difference]: Finished difference Result 102 states and 148 transitions. [2022-11-18 18:33:58,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:33:58,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-11-18 18:33:58,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:58,303 INFO L225 Difference]: With dead ends: 102 [2022-11-18 18:33:58,303 INFO L226 Difference]: Without dead ends: 102 [2022-11-18 18:33:58,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:33:58,304 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:58,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:33:58,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-18 18:33:58,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 92. [2022-11-18 18:33:58,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 90 states have (on average 1.5333333333333334) internal successors, (138), 91 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:58,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 138 transitions. [2022-11-18 18:33:58,308 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 138 transitions. Word has length 14 [2022-11-18 18:33:58,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:58,309 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 138 transitions. [2022-11-18 18:33:58,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:58,310 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 138 transitions. [2022-11-18 18:33:58,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 18:33:58,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:58,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:58,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:33:58,313 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2022-11-18 18:33:58,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:58,314 INFO L85 PathProgramCache]: Analyzing trace with hash -383224713, now seen corresponding path program 1 times [2022-11-18 18:33:58,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:58,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130100827] [2022-11-18 18:33:58,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:58,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:58,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:58,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130100827] [2022-11-18 18:33:58,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130100827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:58,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:58,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:33:58,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165242943] [2022-11-18 18:33:58,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:58,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:33:58,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:58,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:33:58,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:33:58,566 INFO L87 Difference]: Start difference. First operand 92 states and 138 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:58,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:58,649 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2022-11-18 18:33:58,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:33:58,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-11-18 18:33:58,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:58,652 INFO L225 Difference]: With dead ends: 63 [2022-11-18 18:33:58,652 INFO L226 Difference]: Without dead ends: 63 [2022-11-18 18:33:58,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:33:58,654 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:58,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:33:58,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-18 18:33:58,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-18 18:33:58,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 62 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 76 transitions. [2022-11-18 18:33:58,658 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 76 transitions. Word has length 15 [2022-11-18 18:33:58,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:58,659 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 76 transitions. [2022-11-18 18:33:58,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:58,659 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 76 transitions. [2022-11-18 18:33:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 18:33:58,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:58,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:58,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:33:58,661 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2022-11-18 18:33:58,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:58,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1486046438, now seen corresponding path program 1 times [2022-11-18 18:33:58,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:58,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304384708] [2022-11-18 18:33:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:58,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:58,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:58,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:58,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304384708] [2022-11-18 18:33:58,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304384708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:58,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:58,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:33:58,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323724166] [2022-11-18 18:33:58,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:58,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:33:58,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:58,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:33:58,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:33:58,902 INFO L87 Difference]: Start difference. First operand 63 states and 76 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:58,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:58,929 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2022-11-18 18:33:58,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:33:58,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-18 18:33:58,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:58,930 INFO L225 Difference]: With dead ends: 62 [2022-11-18 18:33:58,931 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 18:33:58,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:33:58,932 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:58,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:33:58,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 18:33:58,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 18:33:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:58,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 18:33:58,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-11-18 18:33:58,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:58,934 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:33:58,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:33:58,934 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 18:33:58,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 18:33:58,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2022-11-18 18:33:58,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-18 18:33:58,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2022-11-18 18:33:58,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2022-11-18 18:33:58,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-11-18 18:33:58,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2022-11-18 18:33:58,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2022-11-18 18:33:58,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-11-18 18:33:58,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:33:58,941 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:58,947 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 18:33:58,947 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:33:58,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:33:58 BasicIcfg [2022-11-18 18:33:58,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:33:58,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:33:58,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:33:58,950 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:33:58,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:33:51" (3/4) ... [2022-11-18 18:33:58,954 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 18:33:58,964 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-18 18:33:58,971 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-18 18:33:58,971 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 18:33:58,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 18:33:58,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 18:33:59,016 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:33:59,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:33:59,019 INFO L158 Benchmark]: Toolchain (without parser) took 9378.77ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 85.3MB in the beginning and 68.0MB in the end (delta: 17.2MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2022-11-18 18:33:59,019 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 103.9MB in the beginning and 103.7MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:33:59,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 675.62ms. Allocated memory is still 125.8MB. Free memory was 85.2MB in the beginning and 90.4MB in the end (delta: -5.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 18:33:59,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.49ms. Allocated memory is still 125.8MB. Free memory was 90.4MB in the beginning and 87.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:33:59,020 INFO L158 Benchmark]: Boogie Preprocessor took 60.91ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 86.9MB in the end (delta: 979.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:33:59,020 INFO L158 Benchmark]: RCFGBuilder took 588.39ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 71.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 18:33:59,021 INFO L158 Benchmark]: TraceAbstraction took 7892.40ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 71.1MB in the beginning and 70.1MB in the end (delta: 966.5kB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2022-11-18 18:33:59,021 INFO L158 Benchmark]: Witness Printer took 67.83ms. Allocated memory is still 161.5MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:33:59,024 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 103.9MB in the beginning and 103.7MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 675.62ms. Allocated memory is still 125.8MB. Free memory was 85.2MB in the beginning and 90.4MB in the end (delta: -5.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.49ms. Allocated memory is still 125.8MB. Free memory was 90.4MB in the beginning and 87.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.91ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 86.9MB in the end (delta: 979.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 588.39ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 71.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7892.40ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 71.1MB in the beginning and 70.1MB in the end (delta: 966.5kB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Witness Printer took 67.83ms. Allocated memory is still 161.5MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 110 PlacesBefore, 36 PlacesAfterwards, 108 TransitionsBefore, 34 TransitionsAfterwards, 1258 CoEnabledTransitionPairs, 8 FixpointIterations, 58 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 106 TotalNumberOfCompositions, 5522 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1799, independent: 1492, independent conditional: 0, independent unconditional: 1492, dependent: 307, dependent conditional: 0, dependent unconditional: 307, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 919, independent: 862, independent conditional: 0, independent unconditional: 862, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 919, independent: 799, independent conditional: 0, independent unconditional: 799, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 120, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 337, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1799, independent: 630, independent conditional: 0, independent unconditional: 630, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 919, unknown conditional: 0, unknown unconditional: 919] , Statistics on independence cache: Total cache size (in pairs): 111, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 698]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 126 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 330 IncrementalHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 42 mSDtfsCounter, 330 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=0, InterpolantAutomatonStates: 29, 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, 9 MinimizatonAttempts, 53 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 670 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 18:33:59,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3193a5c3-0ff8-47bc-9108-c9932b66bc68/bin/uautomizer-TMbwUNV5ro/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 Writing output log to file Ultimate.log Result: TRUE