./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 --- 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 [2022-11-19 07:21:01,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:21:01,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:21:01,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:21:01,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:21:01,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:21:01,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:21:01,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:21:01,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:21:01,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:21:01,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:21:01,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:21:01,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:21:01,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:21:01,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:21:01,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:21:01,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:21:01,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:21:01,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:21:01,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:21:01,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:21:01,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:21:01,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:21:01,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:21:01,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:21:01,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:21:01,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:21:01,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:21:01,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:21:01,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:21:01,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:21:01,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:21:01,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:21:01,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:21:01,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:21:01,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:21:01,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:21:01,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:21:01,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:21:01,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:21:01,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:21:01,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 07:21:01,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:21:01,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:21:01,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:21:01,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:21:01,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:21:01,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:21:01,424 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:21:01,425 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:21:01,425 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:21:01,425 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:21:01,426 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:21:01,427 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:21:01,427 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:21:01,427 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:21:01,427 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:21:01,428 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:21:01,428 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:21:01,428 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:21:01,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 07:21:01,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 07:21:01,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:21:01,429 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:21:01,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:21:01,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:21:01,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:21:01,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:21:01,432 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 07:21:01,432 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 07:21:01,432 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 07:21:01,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:21:01,433 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:21:01,433 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:21:01,434 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:21:01,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:21:01,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:21:01,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:21:01,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:21:01,435 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:21:01,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:21:01,435 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:21:01,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:21:01,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:21:01,436 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_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 [2022-11-19 07:21:01,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:21:01,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:21:01,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:21:01,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:21:01,805 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:21:01,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2022-11-19 07:21:01,887 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/data/6743f71ef/c3ab7b9481814175881b7944db30e651/FLAG0b6f94f05 [2022-11-19 07:21:02,498 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:21:02,500 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2022-11-19 07:21:02,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/data/6743f71ef/c3ab7b9481814175881b7944db30e651/FLAG0b6f94f05 [2022-11-19 07:21:02,770 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/data/6743f71ef/c3ab7b9481814175881b7944db30e651 [2022-11-19 07:21:02,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:21:02,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:21:02,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:21:02,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:21:02,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:21:02,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:02" (1/1) ... [2022-11-19 07:21:02,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b66ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:02, skipping insertion in model container [2022-11-19 07:21:02,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:02" (1/1) ... [2022-11-19 07:21:02,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:21:02,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:21:03,072 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_f52c24a8-daaa-4286-b460-305b7171d9f8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i[1001,1014] [2022-11-19 07:21:03,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:21:03,386 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:21:03,401 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_f52c24a8-daaa-4286-b460-305b7171d9f8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i[1001,1014] [2022-11-19 07:21:03,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:21:03,521 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:21:03,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03 WrapperNode [2022-11-19 07:21:03,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:21:03,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:21:03,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:21:03,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:21:03,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (1/1) ... [2022-11-19 07:21:03,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (1/1) ... [2022-11-19 07:21:03,608 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-11-19 07:21:03,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:21:03,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:21:03,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:21:03,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:21:03,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (1/1) ... [2022-11-19 07:21:03,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (1/1) ... [2022-11-19 07:21:03,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (1/1) ... [2022-11-19 07:21:03,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (1/1) ... [2022-11-19 07:21:03,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (1/1) ... [2022-11-19 07:21:03,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (1/1) ... [2022-11-19 07:21:03,671 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (1/1) ... [2022-11-19 07:21:03,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (1/1) ... [2022-11-19 07:21:03,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:21:03,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:21:03,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:21:03,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:21:03,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (1/1) ... [2022-11-19 07:21:03,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:21:03,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:03,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:21:03,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:21:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:21:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 07:21:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:21:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:21:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:21:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 07:21:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 07:21:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 07:21:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 07:21:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-19 07:21:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-19 07:21:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-19 07:21:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-19 07:21:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:21:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 07:21:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:21:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:21:03,777 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 07:21:03,917 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:21:03,920 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:21:04,424 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:21:04,607 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:21:04,607 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:21:04,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:04 BoogieIcfgContainer [2022-11-19 07:21:04,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:21:04,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:21:04,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:21:04,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:21:04,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:21:02" (1/3) ... [2022-11-19 07:21:04,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c200d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:04, skipping insertion in model container [2022-11-19 07:21:04,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:03" (2/3) ... [2022-11-19 07:21:04,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c200d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:04, skipping insertion in model container [2022-11-19 07:21:04,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:04" (3/3) ... [2022-11-19 07:21:04,623 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026_power.opt_tso.opt.i [2022-11-19 07:21:04,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:21:04,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-19 07:21:04,644 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:21:04,749 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 07:21:04,805 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:21:04,824 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 149 transitions, 318 flow [2022-11-19 07:21:04,829 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 149 transitions, 318 flow [2022-11-19 07:21:04,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 318 flow [2022-11-19 07:21:04,923 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-11-19 07:21:04,923 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 07:21:04,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-11-19 07:21:04,934 INFO L119 LiptonReduction]: Number of co-enabled transitions 3570 [2022-11-19 07:21:11,443 INFO L134 LiptonReduction]: Checked pairs total: 10801 [2022-11-19 07:21:11,444 INFO L136 LiptonReduction]: Total number of compositions: 143 [2022-11-19 07:21:11,456 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 44 transitions, 108 flow [2022-11-19 07:21:11,790 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5156 states, 5139 states have (on average 4.096516832068496) internal successors, (21052), 5155 states have internal predecessors, (21052), 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) [2022-11-19 07:21:11,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:21:11,826 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;@699ff80d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:21:11,827 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-19 07:21:11,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 5156 states, 5139 states have (on average 4.096516832068496) internal successors, (21052), 5155 states have internal predecessors, (21052), 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) [2022-11-19 07:21:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 07:21:11,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:11,849 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 07:21:11,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:11,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:11,855 INFO L85 PathProgramCache]: Analyzing trace with hash 615, now seen corresponding path program 1 times [2022-11-19 07:21:11,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:11,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609286886] [2022-11-19 07:21:11,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:11,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:12,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:12,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:12,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609286886] [2022-11-19 07:21:12,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609286886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:12,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:12,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 07:21:12,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764420627] [2022-11-19 07:21:12,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:12,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:21:12,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:12,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:21:12,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:21:12,074 INFO L87 Difference]: Start difference. First operand has 5156 states, 5139 states have (on average 4.096516832068496) internal successors, (21052), 5155 states have internal predecessors, (21052), 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) [2022-11-19 07:21:12,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:12,259 INFO L93 Difference]: Finished difference Result 4858 states and 19380 transitions. [2022-11-19 07:21:12,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:21:12,261 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 [2022-11-19 07:21:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:12,331 INFO L225 Difference]: With dead ends: 4858 [2022-11-19 07:21:12,332 INFO L226 Difference]: Without dead ends: 4858 [2022-11-19 07:21:12,333 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 [2022-11-19 07:21:12,337 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:12,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:12,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4858 states. [2022-11-19 07:21:12,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4858 to 4858. [2022-11-19 07:21:12,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4858 states, 4853 states have (on average 3.99340614053163) internal successors, (19380), 4857 states have internal predecessors, (19380), 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) [2022-11-19 07:21:12,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4858 states to 4858 states and 19380 transitions. [2022-11-19 07:21:12,692 INFO L78 Accepts]: Start accepts. Automaton has 4858 states and 19380 transitions. Word has length 1 [2022-11-19 07:21:12,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:12,692 INFO L495 AbstractCegarLoop]: Abstraction has 4858 states and 19380 transitions. [2022-11-19 07:21:12,693 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) [2022-11-19 07:21:12,693 INFO L276 IsEmpty]: Start isEmpty. Operand 4858 states and 19380 transitions. [2022-11-19 07:21:12,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:21:12,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:12,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:21:12,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:21:12,694 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:12,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:12,695 INFO L85 PathProgramCache]: Analyzing trace with hash 582501266, now seen corresponding path program 1 times [2022-11-19 07:21:12,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:12,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253287123] [2022-11-19 07:21:12,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:12,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:13,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:13,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:13,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253287123] [2022-11-19 07:21:13,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253287123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:13,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:13,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:21:13,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450550875] [2022-11-19 07:21:13,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:13,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:13,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:13,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:13,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:13,047 INFO L87 Difference]: Start difference. First operand 4858 states and 19380 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) [2022-11-19 07:21:13,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:13,284 INFO L93 Difference]: Finished difference Result 3970 states and 15654 transitions. [2022-11-19 07:21:13,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:13,285 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 [2022-11-19 07:21:13,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:13,326 INFO L225 Difference]: With dead ends: 3970 [2022-11-19 07:21:13,326 INFO L226 Difference]: Without dead ends: 3850 [2022-11-19 07:21:13,328 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 [2022-11-19 07:21:13,329 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 18 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:13,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 8 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:13,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2022-11-19 07:21:13,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 3850. [2022-11-19 07:21:13,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3848 states have (on average 3.9625779625779627) internal successors, (15248), 3849 states have internal predecessors, (15248), 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) [2022-11-19 07:21:13,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 15248 transitions. [2022-11-19 07:21:13,540 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 15248 transitions. Word has length 5 [2022-11-19 07:21:13,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:13,541 INFO L495 AbstractCegarLoop]: Abstraction has 3850 states and 15248 transitions. [2022-11-19 07:21:13,542 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) [2022-11-19 07:21:13,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 15248 transitions. [2022-11-19 07:21:13,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:21:13,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:13,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:13,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:21:13,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:13,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:13,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1673272141, now seen corresponding path program 1 times [2022-11-19 07:21:13,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:13,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560066516] [2022-11-19 07:21:13,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:13,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:13,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:13,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:13,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560066516] [2022-11-19 07:21:13,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560066516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:13,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:13,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:21:13,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885432086] [2022-11-19 07:21:13,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:13,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:13,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:13,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:13,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:13,905 INFO L87 Difference]: Start difference. First operand 3850 states and 15248 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-19 07:21:14,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:14,092 INFO L93 Difference]: Finished difference Result 6478 states and 24958 transitions. [2022-11-19 07:21:14,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:14,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-11-19 07:21:14,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:14,163 INFO L225 Difference]: With dead ends: 6478 [2022-11-19 07:21:14,163 INFO L226 Difference]: Without dead ends: 6478 [2022-11-19 07:21:14,165 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 [2022-11-19 07:21:14,168 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:14,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:14,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6478 states. [2022-11-19 07:21:14,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6478 to 4970. [2022-11-19 07:21:14,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4970 states, 4968 states have (on average 3.9565217391304346) internal successors, (19656), 4969 states have internal predecessors, (19656), 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) [2022-11-19 07:21:14,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4970 states to 4970 states and 19656 transitions. [2022-11-19 07:21:14,509 INFO L78 Accepts]: Start accepts. Automaton has 4970 states and 19656 transitions. Word has length 11 [2022-11-19 07:21:14,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:14,511 INFO L495 AbstractCegarLoop]: Abstraction has 4970 states and 19656 transitions. [2022-11-19 07:21:14,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-19 07:21:14,511 INFO L276 IsEmpty]: Start isEmpty. Operand 4970 states and 19656 transitions. [2022-11-19 07:21:14,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:21:14,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:14,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:14,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:21:14,520 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:14,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:14,520 INFO L85 PathProgramCache]: Analyzing trace with hash -331827952, now seen corresponding path program 1 times [2022-11-19 07:21:14,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:14,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871458683] [2022-11-19 07:21:14,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:14,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:15,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:15,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:15,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871458683] [2022-11-19 07:21:15,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871458683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:15,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:15,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:21:15,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885249588] [2022-11-19 07:21:15,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:15,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:21:15,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:15,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:21:15,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:21:15,404 INFO L87 Difference]: Start difference. First operand 4970 states and 19656 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2022-11-19 07:21:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:15,861 INFO L93 Difference]: Finished difference Result 4370 states and 17146 transitions. [2022-11-19 07:21:15,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:21:15,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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 [2022-11-19 07:21:15,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:15,884 INFO L225 Difference]: With dead ends: 4370 [2022-11-19 07:21:15,884 INFO L226 Difference]: Without dead ends: 3608 [2022-11-19 07:21:15,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:21:15,885 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 54 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:15,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 55 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:21:15,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2022-11-19 07:21:15,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3608. [2022-11-19 07:21:15,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3608 states, 3607 states have (on average 3.8039922373163293) internal successors, (13721), 3607 states have internal predecessors, (13721), 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) [2022-11-19 07:21:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 13721 transitions. [2022-11-19 07:21:16,016 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 13721 transitions. Word has length 12 [2022-11-19 07:21:16,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:16,016 INFO L495 AbstractCegarLoop]: Abstraction has 3608 states and 13721 transitions. [2022-11-19 07:21:16,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2022-11-19 07:21:16,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 13721 transitions. [2022-11-19 07:21:16,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:21:16,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:16,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:16,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:21:16,019 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:16,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:16,020 INFO L85 PathProgramCache]: Analyzing trace with hash -331830174, now seen corresponding path program 1 times [2022-11-19 07:21:16,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:16,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046788206] [2022-11-19 07:21:16,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:16,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:16,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:16,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046788206] [2022-11-19 07:21:16,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046788206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:16,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:16,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:21:16,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027363620] [2022-11-19 07:21:16,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:16,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:16,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:16,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:16,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:16,220 INFO L87 Difference]: Start difference. First operand 3608 states and 13721 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) [2022-11-19 07:21:16,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:16,329 INFO L93 Difference]: Finished difference Result 3428 states and 12947 transitions. [2022-11-19 07:21:16,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:16,329 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 [2022-11-19 07:21:16,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:16,349 INFO L225 Difference]: With dead ends: 3428 [2022-11-19 07:21:16,349 INFO L226 Difference]: Without dead ends: 3428 [2022-11-19 07:21:16,350 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 [2022-11-19 07:21:16,350 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:16,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 7 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:16,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3428 states. [2022-11-19 07:21:16,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3428 to 3008. [2022-11-19 07:21:16,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3007 states have (on average 3.793481875623545) internal successors, (11407), 3007 states have internal predecessors, (11407), 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) [2022-11-19 07:21:16,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 11407 transitions. [2022-11-19 07:21:16,463 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 11407 transitions. Word has length 12 [2022-11-19 07:21:16,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:16,464 INFO L495 AbstractCegarLoop]: Abstraction has 3008 states and 11407 transitions. [2022-11-19 07:21:16,464 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) [2022-11-19 07:21:16,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 11407 transitions. [2022-11-19 07:21:16,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 07:21:16,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:16,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:16,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:21:16,467 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:16,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:16,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1696804451, now seen corresponding path program 1 times [2022-11-19 07:21:16,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:16,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612741270] [2022-11-19 07:21:16,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:16,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:16,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:16,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612741270] [2022-11-19 07:21:16,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612741270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:16,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:16,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:21:16,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644436707] [2022-11-19 07:21:16,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:16,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:21:16,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:16,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:21:16,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:21:16,689 INFO L87 Difference]: Start difference. First operand 3008 states and 11407 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-19 07:21:16,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:16,847 INFO L93 Difference]: Finished difference Result 3042 states and 10428 transitions. [2022-11-19 07:21:16,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:21:16,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-19 07:21:16,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:16,859 INFO L225 Difference]: With dead ends: 3042 [2022-11-19 07:21:16,859 INFO L226 Difference]: Without dead ends: 2256 [2022-11-19 07:21:16,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:21:16,860 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 45 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:16,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 20 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:16,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2022-11-19 07:21:16,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2256. [2022-11-19 07:21:16,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2256 states, 2255 states have (on average 3.3946784922394677) internal successors, (7655), 2255 states have internal predecessors, (7655), 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) [2022-11-19 07:21:16,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 7655 transitions. [2022-11-19 07:21:16,928 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 7655 transitions. Word has length 13 [2022-11-19 07:21:16,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:16,929 INFO L495 AbstractCegarLoop]: Abstraction has 2256 states and 7655 transitions. [2022-11-19 07:21:16,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-19 07:21:16,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 7655 transitions. [2022-11-19 07:21:16,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:21:16,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:16,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:16,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:21:16,932 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:16,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:16,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1668921243, now seen corresponding path program 1 times [2022-11-19 07:21:16,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:16,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430317253] [2022-11-19 07:21:16,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:16,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:17,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:17,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:17,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430317253] [2022-11-19 07:21:17,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430317253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:17,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:17,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:17,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085340951] [2022-11-19 07:21:17,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:17,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:21:17,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:17,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:21:17,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:21:17,277 INFO L87 Difference]: Start difference. First operand 2256 states and 7655 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-19 07:21:17,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:17,490 INFO L93 Difference]: Finished difference Result 1910 states and 5946 transitions. [2022-11-19 07:21:17,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:17,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-11-19 07:21:17,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:17,499 INFO L225 Difference]: With dead ends: 1910 [2022-11-19 07:21:17,499 INFO L226 Difference]: Without dead ends: 1428 [2022-11-19 07:21:17,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:17,500 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 64 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:17,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 28 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:21:17,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-11-19 07:21:17,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1416. [2022-11-19 07:21:17,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.049469964664311) internal successors, (4315), 1415 states have internal predecessors, (4315), 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) [2022-11-19 07:21:17,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 4315 transitions. [2022-11-19 07:21:17,554 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 4315 transitions. Word has length 16 [2022-11-19 07:21:17,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:17,555 INFO L495 AbstractCegarLoop]: Abstraction has 1416 states and 4315 transitions. [2022-11-19 07:21:17,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-19 07:21:17,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 4315 transitions. [2022-11-19 07:21:17,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:21:17,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:17,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:17,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:21:17,560 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:17,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:17,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1858566259, now seen corresponding path program 1 times [2022-11-19 07:21:17,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:17,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717573203] [2022-11-19 07:21:17,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:17,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:17,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:17,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:17,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717573203] [2022-11-19 07:21:17,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717573203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:17,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:17,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:21:17,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515741299] [2022-11-19 07:21:17,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:17,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:21:17,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:17,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:21:17,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:21:17,817 INFO L87 Difference]: Start difference. First operand 1416 states and 4315 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-19 07:21:18,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:18,014 INFO L93 Difference]: Finished difference Result 2078 states and 6193 transitions. [2022-11-19 07:21:18,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:21:18,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2022-11-19 07:21:18,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:18,022 INFO L225 Difference]: With dead ends: 2078 [2022-11-19 07:21:18,022 INFO L226 Difference]: Without dead ends: 1882 [2022-11-19 07:21:18,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:21:18,023 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 39 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:18,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 11 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:21:18,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2022-11-19 07:21:18,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1440. [2022-11-19 07:21:18,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.0215427380125086) internal successors, (4348), 1439 states have internal predecessors, (4348), 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) [2022-11-19 07:21:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 4348 transitions. [2022-11-19 07:21:18,078 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 4348 transitions. Word has length 19 [2022-11-19 07:21:18,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:18,079 INFO L495 AbstractCegarLoop]: Abstraction has 1440 states and 4348 transitions. [2022-11-19 07:21:18,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-19 07:21:18,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 4348 transitions. [2022-11-19 07:21:18,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:21:18,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:18,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:18,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:21:18,083 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:18,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:18,083 INFO L85 PathProgramCache]: Analyzing trace with hash -2116297757, now seen corresponding path program 2 times [2022-11-19 07:21:18,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:18,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752069341] [2022-11-19 07:21:18,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:18,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:18,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:18,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:18,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752069341] [2022-11-19 07:21:18,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752069341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:18,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:18,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:21:18,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104672854] [2022-11-19 07:21:18,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:18,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:21:18,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:18,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:21:18,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:21:18,279 INFO L87 Difference]: Start difference. First operand 1440 states and 4348 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-19 07:21:18,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:18,412 INFO L93 Difference]: Finished difference Result 1929 states and 5683 transitions. [2022-11-19 07:21:18,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:21:18,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2022-11-19 07:21:18,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:18,419 INFO L225 Difference]: With dead ends: 1929 [2022-11-19 07:21:18,419 INFO L226 Difference]: Without dead ends: 1419 [2022-11-19 07:21:18,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:21:18,420 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 26 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:18,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 18 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:18,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2022-11-19 07:21:18,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1386. [2022-11-19 07:21:18,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1385 states have (on average 2.95884476534296) internal successors, (4098), 1385 states have internal predecessors, (4098), 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) [2022-11-19 07:21:18,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 4098 transitions. [2022-11-19 07:21:18,457 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 4098 transitions. Word has length 19 [2022-11-19 07:21:18,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:18,458 INFO L495 AbstractCegarLoop]: Abstraction has 1386 states and 4098 transitions. [2022-11-19 07:21:18,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-19 07:21:18,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 4098 transitions. [2022-11-19 07:21:18,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:21:18,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:18,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:18,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:21:18,461 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:18,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:18,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1763638179, now seen corresponding path program 3 times [2022-11-19 07:21:18,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:18,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358486270] [2022-11-19 07:21:18,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:18,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:18,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:18,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:18,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358486270] [2022-11-19 07:21:18,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358486270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:18,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:18,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:21:18,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914903862] [2022-11-19 07:21:18,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:18,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:18,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:18,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:18,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:18,699 INFO L87 Difference]: Start difference. First operand 1386 states and 4098 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-11-19 07:21:18,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:18,899 INFO L93 Difference]: Finished difference Result 1209 states and 3541 transitions. [2022-11-19 07:21:18,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:21:18,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2022-11-19 07:21:18,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:18,903 INFO L225 Difference]: With dead ends: 1209 [2022-11-19 07:21:18,903 INFO L226 Difference]: Without dead ends: 1051 [2022-11-19 07:21:18,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:21:18,904 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 90 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:18,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 30 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:21:18,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2022-11-19 07:21:18,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 985. [2022-11-19 07:21:18,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 984 states have (on average 2.975609756097561) internal successors, (2928), 984 states have internal predecessors, (2928), 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) [2022-11-19 07:21:18,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 2928 transitions. [2022-11-19 07:21:18,931 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 2928 transitions. Word has length 19 [2022-11-19 07:21:18,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:18,931 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 2928 transitions. [2022-11-19 07:21:18,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-11-19 07:21:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 2928 transitions. [2022-11-19 07:21:18,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 07:21:18,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:18,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:18,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:21:18,934 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:18,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:18,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1583681283, now seen corresponding path program 1 times [2022-11-19 07:21:18,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:18,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995053484] [2022-11-19 07:21:18,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:18,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:19,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:19,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995053484] [2022-11-19 07:21:19,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995053484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:19,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:19,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:21:19,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816917903] [2022-11-19 07:21:19,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:19,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:21:19,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:19,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:21:19,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:21:19,256 INFO L87 Difference]: Start difference. First operand 985 states and 2928 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:19,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:19,456 INFO L93 Difference]: Finished difference Result 952 states and 2862 transitions. [2022-11-19 07:21:19,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:21:19,456 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-19 07:21:19,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:19,458 INFO L225 Difference]: With dead ends: 952 [2022-11-19 07:21:19,458 INFO L226 Difference]: Without dead ends: 496 [2022-11-19 07:21:19,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:21:19,459 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 150 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:19,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 24 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:21:19,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-11-19 07:21:19,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 406. [2022-11-19 07:21:19,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 2.7728395061728395) internal successors, (1123), 405 states have internal predecessors, (1123), 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) [2022-11-19 07:21:19,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 1123 transitions. [2022-11-19 07:21:19,473 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 1123 transitions. Word has length 23 [2022-11-19 07:21:19,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:19,474 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 1123 transitions. [2022-11-19 07:21:19,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:19,475 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 1123 transitions. [2022-11-19 07:21:19,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:21:19,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:19,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:19,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:21:19,478 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:19,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1210809667, now seen corresponding path program 1 times [2022-11-19 07:21:19,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:19,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607281291] [2022-11-19 07:21:19,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:19,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:19,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:19,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607281291] [2022-11-19 07:21:19,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607281291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:19,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:19,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:21:19,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333922330] [2022-11-19 07:21:19,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:19,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:21:19,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:19,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:21:19,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:21:19,760 INFO L87 Difference]: Start difference. First operand 406 states and 1123 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:19,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:19,881 INFO L93 Difference]: Finished difference Result 594 states and 1618 transitions. [2022-11-19 07:21:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:21:19,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 07:21:19,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:19,882 INFO L225 Difference]: With dead ends: 594 [2022-11-19 07:21:19,883 INFO L226 Difference]: Without dead ends: 258 [2022-11-19 07:21:19,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:21:19,883 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:19,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 16 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:19,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-19 07:21:19,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2022-11-19 07:21:19,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 2.5486381322957197) internal successors, (655), 257 states have internal predecessors, (655), 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) [2022-11-19 07:21:19,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 655 transitions. [2022-11-19 07:21:19,892 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 655 transitions. Word has length 27 [2022-11-19 07:21:19,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:19,892 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 655 transitions. [2022-11-19 07:21:19,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:19,892 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 655 transitions. [2022-11-19 07:21:19,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:21:19,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:19,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:19,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:21:19,895 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:19,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:19,895 INFO L85 PathProgramCache]: Analyzing trace with hash 847861449, now seen corresponding path program 2 times [2022-11-19 07:21:19,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:19,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356374176] [2022-11-19 07:21:19,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:19,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:20,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:20,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:20,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356374176] [2022-11-19 07:21:20,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356374176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:20,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:20,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:21:20,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706379146] [2022-11-19 07:21:20,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:20,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:21:20,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:20,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:21:20,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:21:20,157 INFO L87 Difference]: Start difference. First operand 258 states and 655 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:20,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:20,265 INFO L93 Difference]: Finished difference Result 505 states and 1316 transitions. [2022-11-19 07:21:20,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:21:20,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 07:21:20,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:20,267 INFO L225 Difference]: With dead ends: 505 [2022-11-19 07:21:20,267 INFO L226 Difference]: Without dead ends: 194 [2022-11-19 07:21:20,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:21:20,268 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 25 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:20,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 11 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:20,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-19 07:21:20,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2022-11-19 07:21:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 2.481865284974093) internal successors, (479), 193 states have internal predecessors, (479), 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) [2022-11-19 07:21:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 479 transitions. [2022-11-19 07:21:20,273 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 479 transitions. Word has length 27 [2022-11-19 07:21:20,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:20,273 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 479 transitions. [2022-11-19 07:21:20,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:20,274 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 479 transitions. [2022-11-19 07:21:20,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:21:20,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:20,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:20,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 07:21:20,276 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:20,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:20,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1947855423, now seen corresponding path program 3 times [2022-11-19 07:21:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:20,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309999451] [2022-11-19 07:21:20,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:20,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:21,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:21,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309999451] [2022-11-19 07:21:21,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309999451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:21,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:21,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:21:21,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683687769] [2022-11-19 07:21:21,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:21,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:21:21,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:21,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:21:21,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:21:21,382 INFO L87 Difference]: Start difference. First operand 194 states and 479 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:21,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:21,754 INFO L93 Difference]: Finished difference Result 232 states and 565 transitions. [2022-11-19 07:21:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:21:21,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 07:21:21,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:21,755 INFO L225 Difference]: With dead ends: 232 [2022-11-19 07:21:21,755 INFO L226 Difference]: Without dead ends: 112 [2022-11-19 07:21:21,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:21:21,756 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 82 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:21,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 22 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:21:21,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-19 07:21:21,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-11-19 07:21:21,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 2.1531531531531534) internal successors, (239), 111 states have internal predecessors, (239), 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) [2022-11-19 07:21:21,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 239 transitions. [2022-11-19 07:21:21,760 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 239 transitions. Word has length 27 [2022-11-19 07:21:21,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:21,760 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 239 transitions. [2022-11-19 07:21:21,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:21,760 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 239 transitions. [2022-11-19 07:21:21,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:21:21,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:21,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:21,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 07:21:21,762 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:21,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:21,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2000061119, now seen corresponding path program 4 times [2022-11-19 07:21:21,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:21,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244388924] [2022-11-19 07:21:21,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:21,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:21:21,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:21:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:21:21,902 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:21:21,903 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:21:21,904 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-19 07:21:21,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-19 07:21:21,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-19 07:21:21,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-19 07:21:21,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-19 07:21:21,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-19 07:21:21,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-19 07:21:21,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-19 07:21:21,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-19 07:21:21,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-19 07:21:21,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-19 07:21:21,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-19 07:21:21,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-19 07:21:21,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-19 07:21:21,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-19 07:21:21,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-19 07:21:21,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 07:21:21,912 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:21,917 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 07:21:21,917 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:21:22,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:21:22 BasicIcfg [2022-11-19 07:21:22,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:21:22,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:21:22,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:21:22,017 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:21:22,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:04" (3/4) ... [2022-11-19 07:21:22,020 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:21:22,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:21:22,021 INFO L158 Benchmark]: Toolchain (without parser) took 19245.17ms. Allocated memory was 107.0MB in the beginning and 490.7MB in the end (delta: 383.8MB). Free memory was 73.6MB in the beginning and 296.0MB in the end (delta: -222.4MB). Peak memory consumption was 161.4MB. Max. memory is 16.1GB. [2022-11-19 07:21:22,021 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:21:22,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 742.34ms. Allocated memory is still 107.0MB. Free memory was 73.4MB in the beginning and 68.9MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:21:22,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.27ms. Allocated memory is still 107.0MB. Free memory was 68.9MB in the beginning and 66.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:21:22,022 INFO L158 Benchmark]: Boogie Preprocessor took 66.78ms. Allocated memory is still 107.0MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:21:22,023 INFO L158 Benchmark]: RCFGBuilder took 934.93ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 64.3MB in the beginning and 100.5MB in the end (delta: -36.1MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2022-11-19 07:21:22,023 INFO L158 Benchmark]: TraceAbstraction took 17399.50ms. Allocated memory was 148.9MB in the beginning and 490.7MB in the end (delta: 341.8MB). Free memory was 100.5MB in the beginning and 297.0MB in the end (delta: -196.5MB). Peak memory consumption was 146.3MB. Max. memory is 16.1GB. [2022-11-19 07:21:22,023 INFO L158 Benchmark]: Witness Printer took 6.03ms. Allocated memory is still 490.7MB. Free memory was 297.0MB in the beginning and 296.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:21:22,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 742.34ms. Allocated memory is still 107.0MB. Free memory was 73.4MB in the beginning and 68.9MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.27ms. Allocated memory is still 107.0MB. Free memory was 68.9MB in the beginning and 66.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.78ms. Allocated memory is still 107.0MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 934.93ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 64.3MB in the beginning and 100.5MB in the end (delta: -36.1MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * TraceAbstraction took 17399.50ms. Allocated memory was 148.9MB in the beginning and 490.7MB in the end (delta: 341.8MB). Free memory was 100.5MB in the beginning and 297.0MB in the end (delta: -196.5MB). Peak memory consumption was 146.3MB. Max. memory is 16.1GB. * Witness Printer took 6.03ms. Allocated memory is still 490.7MB. Free memory was 297.0MB in the beginning and 296.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6s, 160 PlacesBefore, 56 PlacesAfterwards, 149 TransitionsBefore, 44 TransitionsAfterwards, 3570 CoEnabledTransitionPairs, 8 FixpointIterations, 55 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 143 TotalNumberOfCompositions, 10801 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5928, independent: 5671, independent conditional: 0, independent unconditional: 5671, dependent: 257, dependent conditional: 0, dependent unconditional: 257, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2686, independent: 2616, independent conditional: 0, independent unconditional: 2616, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2686, independent: 2590, independent conditional: 0, independent unconditional: 2590, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 96, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 542, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 486, dependent conditional: 0, dependent unconditional: 486, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5928, independent: 3055, independent conditional: 0, independent unconditional: 3055, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 2686, unknown conditional: 0, unknown unconditional: 2686] , Statistics on independence cache: Total cache size (in pairs): 381, Positive cache size: 350, Positive conditional cache size: 0, Positive unconditional cache size: 350, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, 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 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L726] 0 _Bool x$flush_delayed; [L739] 0 int *x$read_delayed_var; [L748] 0 _Bool weak$$choice0; [L749] 0 _Bool weak$$choice2; [L727] 0 int x$mem_tmp; [L713] 0 int __unbuffered_p0_EAX = 0; [L731] 0 _Bool x$r_buff0_thd3; [L732] 0 _Bool x$r_buff0_thd4; [L729] 0 _Bool x$r_buff0_thd1; [L715] 0 int __unbuffered_p1_EAX = 0; [L730] 0 _Bool x$r_buff0_thd2; [L719] 0 int __unbuffered_p3_EBX = 0; [L728] 0 _Bool x$r_buff0_thd0; [L721] 0 int a = 0; [L738] 0 _Bool x$read_delayed; [L711] 0 int __unbuffered_cnt = 0; [L723] 0 _Bool main$tmp_guard1; [L743] 0 _Bool x$w_buff1_used; [L722] 0 _Bool main$tmp_guard0; [L717] 0 int __unbuffered_p3_EAX = 0; [L741] 0 _Bool x$w_buff0_used; [L740] 0 int x$w_buff0; [L742] 0 int x$w_buff1; [L725] 0 int x = 0; [L734] 0 _Bool x$r_buff1_thd1; [L733] 0 _Bool x$r_buff1_thd0; [L745] 0 int y = 0; [L747] 0 int z = 0; [L737] 0 _Bool x$r_buff1_thd4; [L736] 0 _Bool x$r_buff1_thd3; [L735] 0 _Bool x$r_buff1_thd2; [L862] 0 pthread_t t685; [L863] FCALL, FORK 0 pthread_create(&t685, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t685, ((void *)0), P0, ((void *)0))=-3, t685={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L864] 0 pthread_t t686; [L865] FCALL, FORK 0 pthread_create(&t686, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t686, ((void *)0), P1, ((void *)0))=-2, t685={5:0}, t686={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L866] 0 pthread_t t687; [L867] FCALL, FORK 0 pthread_create(&t687, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t687, ((void *)0), P2, ((void *)0))=-1, t685={5:0}, t686={6:0}, t687={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L868] 0 pthread_t t688; [L869] FCALL, FORK 0 pthread_create(&t688, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t688, ((void *)0), P3, ((void *)0))=0, t685={5:0}, t686={6:0}, t687={7:0}, t688={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L781] 2 x$w_buff1 = x$w_buff0 [L782] 2 x$w_buff0 = 1 [L783] 2 x$w_buff1_used = x$w_buff0_used [L784] 2 x$w_buff0_used = (_Bool)1 [L785] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L785] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L786] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L787] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L788] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L789] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L790] 2 x$r_buff1_thd4 = x$r_buff0_thd4 [L791] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L794] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L811] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L814] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L831] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L817] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L818] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L819] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L820] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L821] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L824] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L826] 3 return 0; [L834] 4 __unbuffered_p3_EAX = z VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L837] 4 __unbuffered_p3_EBX = a VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L840] 4 x = x$w_buff0_used && x$r_buff0_thd4 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd4 ? x$w_buff1 : x) [L841] 4 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$w_buff0_used [L842] 4 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$w_buff1_used [L843] 4 x$r_buff0_thd4 = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$r_buff0_thd4 [L844] 4 x$r_buff1_thd4 = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L753] 1 a = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L847] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L849] 4 return 0; [L756] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L757] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L758] 1 x$flush_delayed = weak$$choice2 [L759] 1 x$mem_tmp = x [L760] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L761] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L762] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L763] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L764] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L765] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L766] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L767] 1 __unbuffered_p0_EAX = x [L768] 1 x = x$flush_delayed ? x$mem_tmp : x [L769] 1 x$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L774] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L776] 1 return 0; [L797] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L798] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L799] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L800] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L801] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L804] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L806] 2 return 0; [L871] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L873] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L873] RET 0 assume_abort_if_not(main$tmp_guard0) [L875] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L876] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L877] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L878] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L879] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t685={5:0}, t686={6:0}, t687={7:0}, t688={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L882] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L884] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 860]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 867]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 185 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 17.1s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 639 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 639 mSDsluCounter, 259 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1519 IncrementalHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 96 mSDtfsCounter, 1519 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5156occurred in iteration=0, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 2571 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 1519 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 07:21:22,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 --- 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 [2022-11-19 07:21:24,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:21:24,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:21:24,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:21:24,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:21:24,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:21:24,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:21:24,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:21:24,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:21:24,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:21:24,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:21:24,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:21:24,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:21:24,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:21:24,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:21:24,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:21:24,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:21:24,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:21:24,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:21:24,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:21:24,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:21:24,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:21:24,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:21:24,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:21:24,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:21:24,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:21:24,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:21:24,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:21:24,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:21:24,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:21:24,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:21:24,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:21:24,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:21:24,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:21:24,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:21:24,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:21:24,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:21:24,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:21:24,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:21:24,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:21:24,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:21:24,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-19 07:21:24,667 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:21:24,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:21:24,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:21:24,669 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:21:24,670 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:21:24,670 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:21:24,671 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:21:24,671 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:21:24,671 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:21:24,671 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:21:24,672 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:21:24,673 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:21:24,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 07:21:24,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 07:21:24,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:21:24,675 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:21:24,675 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:21:24,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:21:24,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:21:24,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:21:24,676 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 07:21:24,676 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 07:21:24,676 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 07:21:24,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:21:24,677 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:21:24,677 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:21:24,677 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:21:24,677 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:21:24,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:21:24,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:21:24,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:21:24,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:21:24,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:21:24,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:21:24,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:21:24,680 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:21:24,680 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:21:24,680 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:21:24,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:21:24,681 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/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_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS 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 -> Taipan 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 -> 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 [2022-11-19 07:21:25,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:21:25,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:21:25,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:21:25,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:21:25,142 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:21:25,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2022-11-19 07:21:25,220 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/data/0f4dab719/ac7d0ce0ca9d4523a0e9ab6291325dde/FLAGc2ac809f8 [2022-11-19 07:21:25,813 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:21:25,813 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2022-11-19 07:21:25,841 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/data/0f4dab719/ac7d0ce0ca9d4523a0e9ab6291325dde/FLAGc2ac809f8 [2022-11-19 07:21:26,078 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/data/0f4dab719/ac7d0ce0ca9d4523a0e9ab6291325dde [2022-11-19 07:21:26,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:21:26,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:21:26,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:21:26,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:21:26,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:21:26,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e8942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26, skipping insertion in model container [2022-11-19 07:21:26,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:21:26,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:21:26,359 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_f52c24a8-daaa-4286-b460-305b7171d9f8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i[1001,1014] [2022-11-19 07:21:26,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:21:26,630 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:21:26,644 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_f52c24a8-daaa-4286-b460-305b7171d9f8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i[1001,1014] [2022-11-19 07:21:26,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:21:26,756 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:21:26,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26 WrapperNode [2022-11-19 07:21:26,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:21:26,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:21:26,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:21:26,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:21:26,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,852 INFO L138 Inliner]: procedures = 180, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-11-19 07:21:26,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:21:26,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:21:26,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:21:26,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:21:26,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,911 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:21:26,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:21:26,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:21:26,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:21:26,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (1/1) ... [2022-11-19 07:21:26,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:21:26,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:26,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:21:26,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:21:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 07:21:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:21:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:21:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:21:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 07:21:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:21:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 07:21:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 07:21:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 07:21:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 07:21:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-19 07:21:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-19 07:21:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-19 07:21:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-19 07:21:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 07:21:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:21:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:21:27,025 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 07:21:27,333 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:21:27,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:21:27,894 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:21:28,123 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:21:28,123 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:21:28,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:28 BoogieIcfgContainer [2022-11-19 07:21:28,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:21:28,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:21:28,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:21:28,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:21:28,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:21:26" (1/3) ... [2022-11-19 07:21:28,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c8ce61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:28, skipping insertion in model container [2022-11-19 07:21:28,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:26" (2/3) ... [2022-11-19 07:21:28,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c8ce61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:28, skipping insertion in model container [2022-11-19 07:21:28,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:28" (3/3) ... [2022-11-19 07:21:28,136 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026_power.opt_tso.opt.i [2022-11-19 07:21:28,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:21:28,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-19 07:21:28,180 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:21:28,349 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 07:21:28,410 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:21:28,443 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 150 transitions, 320 flow [2022-11-19 07:21:28,450 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 150 transitions, 320 flow [2022-11-19 07:21:28,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2022-11-19 07:21:28,576 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-11-19 07:21:28,576 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 07:21:28,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-11-19 07:21:28,588 INFO L119 LiptonReduction]: Number of co-enabled transitions 3570 [2022-11-19 07:21:39,879 INFO L134 LiptonReduction]: Checked pairs total: 9841 [2022-11-19 07:21:39,880 INFO L136 LiptonReduction]: Total number of compositions: 139 [2022-11-19 07:21:39,892 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 44 transitions, 108 flow [2022-11-19 07:21:40,181 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5156 states, 5139 states have (on average 4.096516832068496) internal successors, (21052), 5155 states have internal predecessors, (21052), 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) [2022-11-19 07:21:40,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:21:40,209 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;@2c43e369, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:21:40,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-19 07:21:40,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 5156 states, 5139 states have (on average 4.096516832068496) internal successors, (21052), 5155 states have internal predecessors, (21052), 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) [2022-11-19 07:21:40,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 07:21:40,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:40,237 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 07:21:40,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:40,243 INFO L85 PathProgramCache]: Analyzing trace with hash 615, now seen corresponding path program 1 times [2022-11-19 07:21:40,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:40,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377535667] [2022-11-19 07:21:40,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:40,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:40,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:40,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:40,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:21:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:40,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 07:21:40,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:40,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:40,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:40,384 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:40,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377535667] [2022-11-19 07:21:40,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377535667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:40,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:40,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 07:21:40,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146445986] [2022-11-19 07:21:40,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:40,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:21:40,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:40,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:21:40,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:21:40,493 INFO L87 Difference]: Start difference. First operand has 5156 states, 5139 states have (on average 4.096516832068496) internal successors, (21052), 5155 states have internal predecessors, (21052), 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) [2022-11-19 07:21:40,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:40,789 INFO L93 Difference]: Finished difference Result 4858 states and 19380 transitions. [2022-11-19 07:21:40,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:21:40,852 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 [2022-11-19 07:21:40,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:40,941 INFO L225 Difference]: With dead ends: 4858 [2022-11-19 07:21:40,942 INFO L226 Difference]: Without dead ends: 4858 [2022-11-19 07:21:40,943 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 [2022-11-19 07:21:40,948 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:40,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4858 states. [2022-11-19 07:21:41,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4858 to 4858. [2022-11-19 07:21:41,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4858 states, 4853 states have (on average 3.99340614053163) internal successors, (19380), 4857 states have internal predecessors, (19380), 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) [2022-11-19 07:21:41,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4858 states to 4858 states and 19380 transitions. [2022-11-19 07:21:41,354 INFO L78 Accepts]: Start accepts. Automaton has 4858 states and 19380 transitions. Word has length 1 [2022-11-19 07:21:41,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:41,355 INFO L495 AbstractCegarLoop]: Abstraction has 4858 states and 19380 transitions. [2022-11-19 07:21:41,356 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) [2022-11-19 07:21:41,357 INFO L276 IsEmpty]: Start isEmpty. Operand 4858 states and 19380 transitions. [2022-11-19 07:21:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:21:41,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:41,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:21:41,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:41,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:41,572 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:41,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:41,573 INFO L85 PathProgramCache]: Analyzing trace with hash 580714831, now seen corresponding path program 1 times [2022-11-19 07:21:41,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:41,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371441620] [2022-11-19 07:21:41,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:41,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:41,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:41,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:41,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 07:21:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:41,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:21:41,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:41,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:41,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:41,837 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:41,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371441620] [2022-11-19 07:21:41,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371441620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:41,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:41,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:21:41,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160970876] [2022-11-19 07:21:41,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:41,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:41,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:41,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:41,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:41,841 INFO L87 Difference]: Start difference. First operand 4858 states and 19380 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) [2022-11-19 07:21:42,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:42,038 INFO L93 Difference]: Finished difference Result 3970 states and 15654 transitions. [2022-11-19 07:21:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:42,039 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 [2022-11-19 07:21:42,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:42,073 INFO L225 Difference]: With dead ends: 3970 [2022-11-19 07:21:42,073 INFO L226 Difference]: Without dead ends: 3850 [2022-11-19 07:21:42,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:42,075 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 18 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:42,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 8 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:42,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2022-11-19 07:21:42,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 3850. [2022-11-19 07:21:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3848 states have (on average 3.9625779625779627) internal successors, (15248), 3849 states have internal predecessors, (15248), 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) [2022-11-19 07:21:42,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 15248 transitions. [2022-11-19 07:21:42,387 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 15248 transitions. Word has length 5 [2022-11-19 07:21:42,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:42,388 INFO L495 AbstractCegarLoop]: Abstraction has 3850 states and 15248 transitions. [2022-11-19 07:21:42,388 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) [2022-11-19 07:21:42,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 15248 transitions. [2022-11-19 07:21:42,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:21:42,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:42,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:42,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-19 07:21:42,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:42,611 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:42,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:42,612 INFO L85 PathProgramCache]: Analyzing trace with hash 57574928, now seen corresponding path program 1 times [2022-11-19 07:21:42,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:42,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984130395] [2022-11-19 07:21:42,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:42,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:42,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:42,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:42,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 07:21:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:42,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:21:42,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:42,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:42,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:42,835 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:42,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984130395] [2022-11-19 07:21:42,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984130395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:42,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:42,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:21:42,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841520753] [2022-11-19 07:21:42,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:42,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:21:42,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:42,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:21:42,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:21:42,842 INFO L87 Difference]: Start difference. First operand 3850 states and 15248 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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) [2022-11-19 07:21:43,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:43,134 INFO L93 Difference]: Finished difference Result 3250 states and 11398 transitions. [2022-11-19 07:21:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:21:43,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 [2022-11-19 07:21:43,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:43,156 INFO L225 Difference]: With dead ends: 3250 [2022-11-19 07:21:43,156 INFO L226 Difference]: Without dead ends: 2650 [2022-11-19 07:21:43,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:21:43,158 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 58 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:43,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 12 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:21:43,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2022-11-19 07:21:43,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2650. [2022-11-19 07:21:43,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2650 states, 2648 states have (on average 3.4924471299093653) internal successors, (9248), 2649 states have internal predecessors, (9248), 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) [2022-11-19 07:21:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 9248 transitions. [2022-11-19 07:21:43,327 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 9248 transitions. Word has length 12 [2022-11-19 07:21:43,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:43,328 INFO L495 AbstractCegarLoop]: Abstraction has 2650 states and 9248 transitions. [2022-11-19 07:21:43,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-19 07:21:43,329 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 9248 transitions. [2022-11-19 07:21:43,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 07:21:43,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:43,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:43,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:43,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:43,540 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:43,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:43,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1705464050, now seen corresponding path program 1 times [2022-11-19 07:21:43,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:43,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265969764] [2022-11-19 07:21:43,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:43,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:43,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:43,543 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:43,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-19 07:21:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:43,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:21:43,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:43,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:43,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:43,763 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:43,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265969764] [2022-11-19 07:21:43,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265969764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:43,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:43,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:43,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481469840] [2022-11-19 07:21:43,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:43,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:21:43,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:43,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:21:43,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:21:43,766 INFO L87 Difference]: Start difference. First operand 2650 states and 9248 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 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) [2022-11-19 07:21:44,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:44,020 INFO L93 Difference]: Finished difference Result 1770 states and 5486 transitions. [2022-11-19 07:21:44,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:21:44,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 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 [2022-11-19 07:21:44,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:44,031 INFO L225 Difference]: With dead ends: 1770 [2022-11-19 07:21:44,031 INFO L226 Difference]: Without dead ends: 1410 [2022-11-19 07:21:44,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:21:44,033 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 94 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:44,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 20 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:21:44,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-11-19 07:21:44,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1410. [2022-11-19 07:21:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1408 states have (on average 3.0454545454545454) internal successors, (4288), 1409 states have internal predecessors, (4288), 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) [2022-11-19 07:21:44,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 4288 transitions. [2022-11-19 07:21:44,128 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 4288 transitions. Word has length 15 [2022-11-19 07:21:44,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:44,128 INFO L495 AbstractCegarLoop]: Abstraction has 1410 states and 4288 transitions. [2022-11-19 07:21:44,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 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) [2022-11-19 07:21:44,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 4288 transitions. [2022-11-19 07:21:44,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:21:44,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:44,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:44,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:44,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:44,333 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:44,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:44,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1212452908, now seen corresponding path program 1 times [2022-11-19 07:21:44,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:44,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309874329] [2022-11-19 07:21:44,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:44,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:44,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:44,336 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:44,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 07:21:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:44,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:21:44,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:44,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:44,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:44,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:44,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309874329] [2022-11-19 07:21:44,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309874329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:44,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:44,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:21:44,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248786704] [2022-11-19 07:21:44,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:44,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:44,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:44,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:44,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:44,570 INFO L87 Difference]: Start difference. First operand 1410 states and 4288 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-11-19 07:21:44,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:44,931 INFO L93 Difference]: Finished difference Result 1047 states and 3164 transitions. [2022-11-19 07:21:44,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:44,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2022-11-19 07:21:44,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:44,937 INFO L225 Difference]: With dead ends: 1047 [2022-11-19 07:21:44,937 INFO L226 Difference]: Without dead ends: 935 [2022-11-19 07:21:44,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:21:44,938 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 125 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:44,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 40 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:21:44,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2022-11-19 07:21:44,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 935. [2022-11-19 07:21:44,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 933 states have (on average 3.0685959271168275) internal successors, (2863), 934 states have internal predecessors, (2863), 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) [2022-11-19 07:21:45,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 2863 transitions. [2022-11-19 07:21:45,002 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 2863 transitions. Word has length 19 [2022-11-19 07:21:45,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:45,003 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 2863 transitions. [2022-11-19 07:21:45,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-11-19 07:21:45,003 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 2863 transitions. [2022-11-19 07:21:45,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 07:21:45,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:45,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:45,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:45,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:45,221 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:45,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:45,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1206020439, now seen corresponding path program 1 times [2022-11-19 07:21:45,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:45,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891608699] [2022-11-19 07:21:45,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:45,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:45,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:45,225 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:45,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-19 07:21:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:45,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 07:21:45,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:45,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:45,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:45,519 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:45,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891608699] [2022-11-19 07:21:45,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1891608699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:45,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:45,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:21:45,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067265660] [2022-11-19 07:21:45,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:45,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:21:45,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:45,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:21:45,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:21:45,525 INFO L87 Difference]: Start difference. First operand 935 states and 2863 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:45,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:45,981 INFO L93 Difference]: Finished difference Result 872 states and 2735 transitions. [2022-11-19 07:21:45,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:21:45,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-19 07:21:45,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:45,987 INFO L225 Difference]: With dead ends: 872 [2022-11-19 07:21:45,987 INFO L226 Difference]: Without dead ends: 855 [2022-11-19 07:21:45,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:21:45,989 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 136 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:45,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 64 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:21:45,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2022-11-19 07:21:46,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2022-11-19 07:21:46,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 853 states have (on average 3.168815943728019) internal successors, (2703), 854 states have internal predecessors, (2703), 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) [2022-11-19 07:21:46,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 2703 transitions. [2022-11-19 07:21:46,026 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 2703 transitions. Word has length 23 [2022-11-19 07:21:46,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:46,026 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 2703 transitions. [2022-11-19 07:21:46,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:46,027 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 2703 transitions. [2022-11-19 07:21:46,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:46,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:46,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:46,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:46,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:46,245 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:46,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:46,245 INFO L85 PathProgramCache]: Analyzing trace with hash -172444418, now seen corresponding path program 1 times [2022-11-19 07:21:46,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:46,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034716871] [2022-11-19 07:21:46,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:46,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:46,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:46,248 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:46,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-19 07:21:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:46,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:21:46,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:47,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:47,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:47,323 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:47,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034716871] [2022-11-19 07:21:47,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034716871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:47,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:47,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:47,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149990345] [2022-11-19 07:21:47,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:47,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:47,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:47,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:47,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:47,325 INFO L87 Difference]: Start difference. First operand 855 states and 2703 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:47,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:47,442 INFO L93 Difference]: Finished difference Result 1589 states and 5040 transitions. [2022-11-19 07:21:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:47,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:21:47,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:47,450 INFO L225 Difference]: With dead ends: 1589 [2022-11-19 07:21:47,451 INFO L226 Difference]: Without dead ends: 1589 [2022-11-19 07:21:47,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:47,452 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:47,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 31 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 80 Unchecked, 0.1s Time] [2022-11-19 07:21:47,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2022-11-19 07:21:47,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 901. [2022-11-19 07:21:47,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 899 states have (on average 3.0956618464961068) internal successors, (2783), 900 states have internal predecessors, (2783), 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) [2022-11-19 07:21:47,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 2783 transitions. [2022-11-19 07:21:47,491 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 2783 transitions. Word has length 28 [2022-11-19 07:21:47,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:47,491 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 2783 transitions. [2022-11-19 07:21:47,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:47,492 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 2783 transitions. [2022-11-19 07:21:47,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:47,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:47,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:47,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:47,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:47,707 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:47,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:47,708 INFO L85 PathProgramCache]: Analyzing trace with hash -172444441, now seen corresponding path program 1 times [2022-11-19 07:21:47,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:47,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808760630] [2022-11-19 07:21:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:47,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:47,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:47,710 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:47,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 07:21:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:47,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:21:47,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:47,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:47,960 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:47,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808760630] [2022-11-19 07:21:47,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808760630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:47,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:47,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:47,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049586242] [2022-11-19 07:21:47,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:47,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:21:47,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:47,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:21:47,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:21:47,967 INFO L87 Difference]: Start difference. First operand 901 states and 2783 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:48,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:48,236 INFO L93 Difference]: Finished difference Result 1130 states and 3446 transitions. [2022-11-19 07:21:48,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:21:48,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:21:48,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:48,242 INFO L225 Difference]: With dead ends: 1130 [2022-11-19 07:21:48,242 INFO L226 Difference]: Without dead ends: 1092 [2022-11-19 07:21:48,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:21:48,243 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 27 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:48,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 27 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:21:48,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-11-19 07:21:48,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1091. [2022-11-19 07:21:48,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1089 states have (on average 3.1074380165289255) internal successors, (3384), 1090 states have internal predecessors, (3384), 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) [2022-11-19 07:21:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 3384 transitions. [2022-11-19 07:21:48,280 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 3384 transitions. Word has length 28 [2022-11-19 07:21:48,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:48,281 INFO L495 AbstractCegarLoop]: Abstraction has 1091 states and 3384 transitions. [2022-11-19 07:21:48,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:48,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 3384 transitions. [2022-11-19 07:21:48,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:48,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:48,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:48,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:48,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:48,498 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:48,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:48,499 INFO L85 PathProgramCache]: Analyzing trace with hash -695010618, now seen corresponding path program 2 times [2022-11-19 07:21:48,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:48,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102478666] [2022-11-19 07:21:48,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:21:48,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:48,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:48,501 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:48,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-19 07:21:48,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 07:21:48,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:21:48,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:21:48,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:49,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:49,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:49,411 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:49,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102478666] [2022-11-19 07:21:49,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102478666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:49,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:49,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:49,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081214528] [2022-11-19 07:21:49,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:49,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:49,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:49,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:49,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:49,413 INFO L87 Difference]: Start difference. First operand 1091 states and 3384 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:49,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:49,517 INFO L93 Difference]: Finished difference Result 1848 states and 5823 transitions. [2022-11-19 07:21:49,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:49,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:21:49,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:49,527 INFO L225 Difference]: With dead ends: 1848 [2022-11-19 07:21:49,527 INFO L226 Difference]: Without dead ends: 1817 [2022-11-19 07:21:49,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:49,529 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:49,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 31 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 59 Unchecked, 0.1s Time] [2022-11-19 07:21:49,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2022-11-19 07:21:49,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1099. [2022-11-19 07:21:49,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1097 states have (on average 3.1030082041932543) internal successors, (3404), 1098 states have internal predecessors, (3404), 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) [2022-11-19 07:21:49,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 3404 transitions. [2022-11-19 07:21:49,576 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 3404 transitions. Word has length 28 [2022-11-19 07:21:49,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:49,577 INFO L495 AbstractCegarLoop]: Abstraction has 1099 states and 3404 transitions. [2022-11-19 07:21:49,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:49,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 3404 transitions. [2022-11-19 07:21:49,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:49,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:49,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:49,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:49,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:49,798 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:49,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:49,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2025020904, now seen corresponding path program 3 times [2022-11-19 07:21:49,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:49,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132853365] [2022-11-19 07:21:49,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:21:49,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:49,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:49,800 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:49,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-19 07:21:50,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 07:21:50,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:21:50,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:21:50,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:50,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:50,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:50,649 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:50,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132853365] [2022-11-19 07:21:50,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132853365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:50,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:50,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:50,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197725098] [2022-11-19 07:21:50,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:50,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:50,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:50,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:50,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:50,650 INFO L87 Difference]: Start difference. First operand 1099 states and 3404 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:50,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:50,867 INFO L93 Difference]: Finished difference Result 1795 states and 5625 transitions. [2022-11-19 07:21:50,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:50,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:21:50,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:50,875 INFO L225 Difference]: With dead ends: 1795 [2022-11-19 07:21:50,875 INFO L226 Difference]: Without dead ends: 1771 [2022-11-19 07:21:50,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:50,876 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 13 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:50,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 31 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 42 Unchecked, 0.2s Time] [2022-11-19 07:21:50,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2022-11-19 07:21:50,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1092. [2022-11-19 07:21:50,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1090 states have (on average 3.1055045871559632) internal successors, (3385), 1091 states have internal predecessors, (3385), 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) [2022-11-19 07:21:50,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 3385 transitions. [2022-11-19 07:21:50,919 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 3385 transitions. Word has length 28 [2022-11-19 07:21:50,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:50,919 INFO L495 AbstractCegarLoop]: Abstraction has 1092 states and 3385 transitions. [2022-11-19 07:21:50,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 3385 transitions. [2022-11-19 07:21:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:50,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:50,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:50,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:51,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:51,137 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:51,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:51,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1070975058, now seen corresponding path program 4 times [2022-11-19 07:21:51,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:51,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613903744] [2022-11-19 07:21:51,138 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:21:51,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:51,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:51,139 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:51,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-19 07:21:51,388 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:21:51,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:21:51,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:21:51,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:52,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:52,008 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:52,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613903744] [2022-11-19 07:21:52,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613903744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:52,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:52,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:52,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500615413] [2022-11-19 07:21:52,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:52,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:52,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:52,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:52,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:52,011 INFO L87 Difference]: Start difference. First operand 1092 states and 3385 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:52,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:52,135 INFO L93 Difference]: Finished difference Result 1818 states and 5703 transitions. [2022-11-19 07:21:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:52,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:21:52,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:52,144 INFO L225 Difference]: With dead ends: 1818 [2022-11-19 07:21:52,144 INFO L226 Difference]: Without dead ends: 1745 [2022-11-19 07:21:52,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:52,145 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:52,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 31 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 59 Unchecked, 0.1s Time] [2022-11-19 07:21:52,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2022-11-19 07:21:52,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1092. [2022-11-19 07:21:52,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1090 states have (on average 3.1045871559633027) internal successors, (3384), 1091 states have internal predecessors, (3384), 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) [2022-11-19 07:21:52,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 3384 transitions. [2022-11-19 07:21:52,193 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 3384 transitions. Word has length 28 [2022-11-19 07:21:52,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:52,193 INFO L495 AbstractCegarLoop]: Abstraction has 1092 states and 3384 transitions. [2022-11-19 07:21:52,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:52,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 3384 transitions. [2022-11-19 07:21:52,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:52,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:52,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:52,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-11-19 07:21:52,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:52,411 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:52,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:52,411 INFO L85 PathProgramCache]: Analyzing trace with hash -349453398, now seen corresponding path program 5 times [2022-11-19 07:21:52,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:52,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354571642] [2022-11-19 07:21:52,411 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 07:21:52,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:52,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:52,419 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:52,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-19 07:21:52,624 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 07:21:52,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:21:52,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:21:52,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:53,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:53,232 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:53,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354571642] [2022-11-19 07:21:53,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [354571642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:53,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:53,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:53,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119232032] [2022-11-19 07:21:53,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:53,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:53,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:53,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:53,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:53,234 INFO L87 Difference]: Start difference. First operand 1092 states and 3384 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:53,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:53,457 INFO L93 Difference]: Finished difference Result 1788 states and 5605 transitions. [2022-11-19 07:21:53,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:53,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:21:53,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:53,465 INFO L225 Difference]: With dead ends: 1788 [2022-11-19 07:21:53,466 INFO L226 Difference]: Without dead ends: 1718 [2022-11-19 07:21:53,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:53,467 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:53,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 31 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 57 Unchecked, 0.2s Time] [2022-11-19 07:21:53,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-11-19 07:21:53,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1077. [2022-11-19 07:21:53,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1075 states have (on average 3.1041860465116278) internal successors, (3337), 1076 states have internal predecessors, (3337), 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) [2022-11-19 07:21:53,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 3337 transitions. [2022-11-19 07:21:53,501 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 3337 transitions. Word has length 28 [2022-11-19 07:21:53,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:53,502 INFO L495 AbstractCegarLoop]: Abstraction has 1077 states and 3337 transitions. [2022-11-19 07:21:53,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:53,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 3337 transitions. [2022-11-19 07:21:53,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:53,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:53,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:53,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:53,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:53,718 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:53,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:53,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1676321534, now seen corresponding path program 6 times [2022-11-19 07:21:53,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:53,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462680578] [2022-11-19 07:21:53,719 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 07:21:53,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:53,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:53,720 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:53,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-19 07:21:53,934 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-19 07:21:53,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:21:53,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:21:53,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:54,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:54,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:54,547 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:54,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462680578] [2022-11-19 07:21:54,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462680578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:54,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:54,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:54,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71456603] [2022-11-19 07:21:54,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:54,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:54,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:54,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:54,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:54,549 INFO L87 Difference]: Start difference. First operand 1077 states and 3337 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:54,759 INFO L93 Difference]: Finished difference Result 1745 states and 5457 transitions. [2022-11-19 07:21:54,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:54,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:21:54,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:54,765 INFO L225 Difference]: With dead ends: 1745 [2022-11-19 07:21:54,766 INFO L226 Difference]: Without dead ends: 1580 [2022-11-19 07:21:54,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:54,767 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 17 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:54,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 30 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 51 Unchecked, 0.2s Time] [2022-11-19 07:21:54,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-11-19 07:21:54,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1055. [2022-11-19 07:21:54,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 1053 states have (on average 3.1025641025641026) internal successors, (3267), 1054 states have internal predecessors, (3267), 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) [2022-11-19 07:21:54,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 3267 transitions. [2022-11-19 07:21:54,801 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 3267 transitions. Word has length 28 [2022-11-19 07:21:54,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:54,801 INFO L495 AbstractCegarLoop]: Abstraction has 1055 states and 3267 transitions. [2022-11-19 07:21:54,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:54,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 3267 transitions. [2022-11-19 07:21:54,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:54,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:54,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:54,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:55,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:55,018 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:55,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:55,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1661500386, now seen corresponding path program 7 times [2022-11-19 07:21:55,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:55,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935736560] [2022-11-19 07:21:55,019 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 07:21:55,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:55,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:55,020 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:55,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-19 07:21:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:55,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:21:55,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:55,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:55,851 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:55,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935736560] [2022-11-19 07:21:55,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935736560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:55,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:55,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:55,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695536628] [2022-11-19 07:21:55,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:55,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:55,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:55,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:55,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:55,853 INFO L87 Difference]: Start difference. First operand 1055 states and 3267 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:56,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:56,084 INFO L93 Difference]: Finished difference Result 1583 states and 4910 transitions. [2022-11-19 07:21:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:56,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:21:56,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:56,089 INFO L225 Difference]: With dead ends: 1583 [2022-11-19 07:21:56,090 INFO L226 Difference]: Without dead ends: 1396 [2022-11-19 07:21:56,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:56,091 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:56,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 30 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 50 Unchecked, 0.2s Time] [2022-11-19 07:21:56,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2022-11-19 07:21:56,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1046. [2022-11-19 07:21:56,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1044 states have (on average 3.1082375478927204) internal successors, (3245), 1045 states have internal predecessors, (3245), 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) [2022-11-19 07:21:56,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 3245 transitions. [2022-11-19 07:21:56,122 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 3245 transitions. Word has length 28 [2022-11-19 07:21:56,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:56,123 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 3245 transitions. [2022-11-19 07:21:56,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:56,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 3245 transitions. [2022-11-19 07:21:56,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:56,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:56,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:56,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:56,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:56,339 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:56,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:56,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1618259502, now seen corresponding path program 8 times [2022-11-19 07:21:56,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:56,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993788937] [2022-11-19 07:21:56,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:21:56,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:56,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:56,342 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:56,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-19 07:21:56,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 07:21:56,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:21:56,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:21:56,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:57,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:57,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:57,119 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:57,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993788937] [2022-11-19 07:21:57,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993788937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:57,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:57,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:57,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398082508] [2022-11-19 07:21:57,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:57,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:57,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:57,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:57,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:57,120 INFO L87 Difference]: Start difference. First operand 1046 states and 3245 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:57,312 INFO L93 Difference]: Finished difference Result 1714 states and 5365 transitions. [2022-11-19 07:21:57,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:57,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:21:57,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:57,319 INFO L225 Difference]: With dead ends: 1714 [2022-11-19 07:21:57,319 INFO L226 Difference]: Without dead ends: 1634 [2022-11-19 07:21:57,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:57,320 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 13 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:57,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 30 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 39 Unchecked, 0.2s Time] [2022-11-19 07:21:57,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-11-19 07:21:57,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1039. [2022-11-19 07:21:57,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 1037 states have (on average 3.1051108968177434) internal successors, (3220), 1038 states have internal predecessors, (3220), 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) [2022-11-19 07:21:57,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 3220 transitions. [2022-11-19 07:21:57,357 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 3220 transitions. Word has length 28 [2022-11-19 07:21:57,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:57,358 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 3220 transitions. [2022-11-19 07:21:57,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:57,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 3220 transitions. [2022-11-19 07:21:57,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:57,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:57,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:57,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:57,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:57,574 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:57,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:57,575 INFO L85 PathProgramCache]: Analyzing trace with hash 592061730, now seen corresponding path program 9 times [2022-11-19 07:21:57,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:57,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077216513] [2022-11-19 07:21:57,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:21:57,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:57,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:57,577 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:57,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-19 07:21:57,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 07:21:57,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:21:57,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:21:57,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:58,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:58,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:58,454 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:58,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077216513] [2022-11-19 07:21:58,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077216513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:58,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:58,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:58,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317621244] [2022-11-19 07:21:58,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:58,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:58,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:58,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:58,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:58,456 INFO L87 Difference]: Start difference. First operand 1039 states and 3220 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:58,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:58,633 INFO L93 Difference]: Finished difference Result 1707 states and 5340 transitions. [2022-11-19 07:21:58,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:58,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:21:58,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:58,639 INFO L225 Difference]: With dead ends: 1707 [2022-11-19 07:21:58,640 INFO L226 Difference]: Without dead ends: 1557 [2022-11-19 07:21:58,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:58,641 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:58,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 30 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 42 Unchecked, 0.2s Time] [2022-11-19 07:21:58,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2022-11-19 07:21:58,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1032. [2022-11-19 07:21:58,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 1030 states have (on average 3.1019417475728157) internal successors, (3195), 1031 states have internal predecessors, (3195), 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) [2022-11-19 07:21:58,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 3195 transitions. [2022-11-19 07:21:58,674 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 3195 transitions. Word has length 28 [2022-11-19 07:21:58,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:58,675 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 3195 transitions. [2022-11-19 07:21:58,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:58,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 3195 transitions. [2022-11-19 07:21:58,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:58,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:58,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:58,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-11-19 07:21:58,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:58,891 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:21:58,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:58,892 INFO L85 PathProgramCache]: Analyzing trace with hash -141089838, now seen corresponding path program 10 times [2022-11-19 07:21:58,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:58,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613021556] [2022-11-19 07:21:58,892 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:21:58,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:21:58,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:58,894 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:21:58,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-19 07:21:59,150 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:21:59,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:21:59,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:21:59,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:59,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:59,801 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:21:59,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613021556] [2022-11-19 07:21:59,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613021556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:59,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:59,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:21:59,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226611086] [2022-11-19 07:21:59,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:59,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:59,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:59,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:59,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:59,804 INFO L87 Difference]: Start difference. First operand 1032 states and 3195 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:59,906 INFO L93 Difference]: Finished difference Result 1752 states and 5484 transitions. [2022-11-19 07:21:59,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:59,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:21:59,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:59,911 INFO L225 Difference]: With dead ends: 1752 [2022-11-19 07:21:59,911 INFO L226 Difference]: Without dead ends: 1469 [2022-11-19 07:21:59,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:21:59,912 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:59,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 31 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 67 Unchecked, 0.1s Time] [2022-11-19 07:21:59,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2022-11-19 07:21:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1036. [2022-11-19 07:21:59,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 1034 states have (on average 3.095744680851064) internal successors, (3201), 1035 states have internal predecessors, (3201), 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) [2022-11-19 07:21:59,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 3201 transitions. [2022-11-19 07:21:59,946 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 3201 transitions. Word has length 28 [2022-11-19 07:21:59,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:59,946 INFO L495 AbstractCegarLoop]: Abstraction has 1036 states and 3201 transitions. [2022-11-19 07:21:59,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 3201 transitions. [2022-11-19 07:21:59,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:21:59,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:59,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:59,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:00,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:00,168 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:00,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:00,168 INFO L85 PathProgramCache]: Analyzing trace with hash 859155786, now seen corresponding path program 11 times [2022-11-19 07:22:00,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:00,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058286017] [2022-11-19 07:22:00,169 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 07:22:00,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:00,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:00,170 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:00,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-19 07:22:00,399 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 07:22:00,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:00,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:22:00,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:01,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:01,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:01,021 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:01,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058286017] [2022-11-19 07:22:01,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058286017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:01,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:01,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:01,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889732342] [2022-11-19 07:22:01,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:01,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:01,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:01,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:01,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:01,024 INFO L87 Difference]: Start difference. First operand 1036 states and 3201 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:01,141 INFO L93 Difference]: Finished difference Result 1996 states and 6196 transitions. [2022-11-19 07:22:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:01,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:01,147 INFO L225 Difference]: With dead ends: 1996 [2022-11-19 07:22:01,147 INFO L226 Difference]: Without dead ends: 1573 [2022-11-19 07:22:01,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:01,148 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 12 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 87 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:01,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 31 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 87 Unchecked, 0.1s Time] [2022-11-19 07:22:01,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-11-19 07:22:01,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1403. [2022-11-19 07:22:01,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1401 states have (on average 3.0299785867237685) internal successors, (4245), 1402 states have internal predecessors, (4245), 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) [2022-11-19 07:22:01,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 4245 transitions. [2022-11-19 07:22:01,196 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 4245 transitions. Word has length 28 [2022-11-19 07:22:01,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:01,196 INFO L495 AbstractCegarLoop]: Abstraction has 1403 states and 4245 transitions. [2022-11-19 07:22:01,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:01,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 4245 transitions. [2022-11-19 07:22:01,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:01,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:01,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:01,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:01,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:01,417 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:01,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:01,417 INFO L85 PathProgramCache]: Analyzing trace with hash 899155146, now seen corresponding path program 12 times [2022-11-19 07:22:01,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:01,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093891853] [2022-11-19 07:22:01,418 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 07:22:01,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:01,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:01,420 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:01,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-19 07:22:01,697 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-19 07:22:01,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:01,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:22:01,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:02,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:02,335 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:02,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093891853] [2022-11-19 07:22:02,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093891853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:02,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:02,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:02,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94707687] [2022-11-19 07:22:02,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:02,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:02,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:02,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:02,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:02,337 INFO L87 Difference]: Start difference. First operand 1403 states and 4245 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:02,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:02,561 INFO L93 Difference]: Finished difference Result 2141 states and 6582 transitions. [2022-11-19 07:22:02,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:02,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:02,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:02,568 INFO L225 Difference]: With dead ends: 2141 [2022-11-19 07:22:02,568 INFO L226 Difference]: Without dead ends: 2012 [2022-11-19 07:22:02,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:02,569 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 13 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:02,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 31 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 41 Unchecked, 0.2s Time] [2022-11-19 07:22:02,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2022-11-19 07:22:02,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 1389. [2022-11-19 07:22:02,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 1387 states have (on average 3.0360490266762796) internal successors, (4211), 1388 states have internal predecessors, (4211), 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) [2022-11-19 07:22:02,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 4211 transitions. [2022-11-19 07:22:02,619 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 4211 transitions. Word has length 28 [2022-11-19 07:22:02,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:02,619 INFO L495 AbstractCegarLoop]: Abstraction has 1389 states and 4211 transitions. [2022-11-19 07:22:02,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:02,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 4211 transitions. [2022-11-19 07:22:02,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:02,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:02,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:02,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:02,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:02,838 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:02,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:02,839 INFO L85 PathProgramCache]: Analyzing trace with hash 294960434, now seen corresponding path program 13 times [2022-11-19 07:22:02,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:02,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730565935] [2022-11-19 07:22:02,840 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 07:22:02,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:02,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:02,841 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:02,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-19 07:22:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:03,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:22:03,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:03,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:03,742 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:03,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730565935] [2022-11-19 07:22:03,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730565935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:03,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:03,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:03,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000406093] [2022-11-19 07:22:03,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:03,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:03,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:03,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:03,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:03,744 INFO L87 Difference]: Start difference. First operand 1389 states and 4211 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:03,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:03,966 INFO L93 Difference]: Finished difference Result 2169 states and 6643 transitions. [2022-11-19 07:22:03,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:03,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:03,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:03,970 INFO L225 Difference]: With dead ends: 2169 [2022-11-19 07:22:03,970 INFO L226 Difference]: Without dead ends: 1878 [2022-11-19 07:22:03,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:03,971 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:03,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 42 Unchecked, 0.2s Time] [2022-11-19 07:22:03,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2022-11-19 07:22:04,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1381. [2022-11-19 07:22:04,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1379 states have (on average 3.024655547498187) internal successors, (4171), 1380 states have internal predecessors, (4171), 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) [2022-11-19 07:22:04,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 4171 transitions. [2022-11-19 07:22:04,017 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 4171 transitions. Word has length 28 [2022-11-19 07:22:04,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:04,018 INFO L495 AbstractCegarLoop]: Abstraction has 1381 states and 4171 transitions. [2022-11-19 07:22:04,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:04,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 4171 transitions. [2022-11-19 07:22:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:04,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:04,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:04,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:04,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:04,235 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:04,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:04,235 INFO L85 PathProgramCache]: Analyzing trace with hash -534354254, now seen corresponding path program 14 times [2022-11-19 07:22:04,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:04,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547000] [2022-11-19 07:22:04,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:22:04,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:04,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:04,238 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:04,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-19 07:22:04,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 07:22:04,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:04,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:22:04,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:05,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:05,198 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:05,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547000] [2022-11-19 07:22:05,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:05,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:05,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:05,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128680365] [2022-11-19 07:22:05,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:05,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:05,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:05,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:05,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:05,200 INFO L87 Difference]: Start difference. First operand 1381 states and 4171 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:05,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:05,410 INFO L93 Difference]: Finished difference Result 1909 states and 5814 transitions. [2022-11-19 07:22:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:05,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:05,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:05,420 INFO L225 Difference]: With dead ends: 1909 [2022-11-19 07:22:05,420 INFO L226 Difference]: Without dead ends: 1543 [2022-11-19 07:22:05,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:05,423 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 16 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:05,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 30 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 39 Unchecked, 0.2s Time] [2022-11-19 07:22:05,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2022-11-19 07:22:05,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1368. [2022-11-19 07:22:05,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1366 states have (on average 3.0307467057101025) internal successors, (4140), 1367 states have internal predecessors, (4140), 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) [2022-11-19 07:22:05,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 4140 transitions. [2022-11-19 07:22:05,465 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 4140 transitions. Word has length 28 [2022-11-19 07:22:05,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:05,466 INFO L495 AbstractCegarLoop]: Abstraction has 1368 states and 4140 transitions. [2022-11-19 07:22:05,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:05,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 4140 transitions. [2022-11-19 07:22:05,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:05,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:05,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:05,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:05,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:05,684 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:05,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:05,684 INFO L85 PathProgramCache]: Analyzing trace with hash 25316306, now seen corresponding path program 15 times [2022-11-19 07:22:05,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:05,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270134115] [2022-11-19 07:22:05,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:22:05,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:05,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:05,686 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:05,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-19 07:22:05,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 07:22:05,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:05,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:22:05,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:06,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:06,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:06,624 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:06,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270134115] [2022-11-19 07:22:06,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270134115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:06,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:06,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:06,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736841801] [2022-11-19 07:22:06,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:06,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:06,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:06,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:06,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:06,627 INFO L87 Difference]: Start difference. First operand 1368 states and 4140 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:06,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:06,717 INFO L93 Difference]: Finished difference Result 2058 states and 6327 transitions. [2022-11-19 07:22:06,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:06,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:06,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:06,721 INFO L225 Difference]: With dead ends: 2058 [2022-11-19 07:22:06,722 INFO L226 Difference]: Without dead ends: 1950 [2022-11-19 07:22:06,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:06,723 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:06,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 49 Unchecked, 0.1s Time] [2022-11-19 07:22:06,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2022-11-19 07:22:06,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1372. [2022-11-19 07:22:06,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1370 states have (on average 3.026277372262774) internal successors, (4146), 1371 states have internal predecessors, (4146), 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) [2022-11-19 07:22:06,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 4146 transitions. [2022-11-19 07:22:06,785 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 4146 transitions. Word has length 28 [2022-11-19 07:22:06,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:06,786 INFO L495 AbstractCegarLoop]: Abstraction has 1372 states and 4146 transitions. [2022-11-19 07:22:06,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:06,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 4146 transitions. [2022-11-19 07:22:06,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:06,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:06,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:06,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:07,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:07,003 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:07,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:07,004 INFO L85 PathProgramCache]: Analyzing trace with hash 350371738, now seen corresponding path program 16 times [2022-11-19 07:22:07,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:07,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421991708] [2022-11-19 07:22:07,005 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:22:07,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:07,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:07,006 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:07,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-19 07:22:07,212 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:22:07,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:07,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:22:07,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:07,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:07,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:07,736 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:07,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421991708] [2022-11-19 07:22:07,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421991708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:07,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:07,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:07,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434354313] [2022-11-19 07:22:07,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:07,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:07,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:07,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:07,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:07,738 INFO L87 Difference]: Start difference. First operand 1372 states and 4146 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:07,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:07,884 INFO L93 Difference]: Finished difference Result 2166 states and 6625 transitions. [2022-11-19 07:22:07,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:07,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:07,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:07,888 INFO L225 Difference]: With dead ends: 2166 [2022-11-19 07:22:07,888 INFO L226 Difference]: Without dead ends: 2068 [2022-11-19 07:22:07,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:07,889 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 10 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:07,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 31 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 38 Unchecked, 0.1s Time] [2022-11-19 07:22:07,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2022-11-19 07:22:07,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1361. [2022-11-19 07:22:07,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 1359 states have (on average 3.0264900662251657) internal successors, (4113), 1360 states have internal predecessors, (4113), 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) [2022-11-19 07:22:07,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 4113 transitions. [2022-11-19 07:22:07,928 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 4113 transitions. Word has length 28 [2022-11-19 07:22:07,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:07,929 INFO L495 AbstractCegarLoop]: Abstraction has 1361 states and 4113 transitions. [2022-11-19 07:22:07,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:07,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 4113 transitions. [2022-11-19 07:22:07,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:07,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:07,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:07,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:08,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:08,146 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:08,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:08,146 INFO L85 PathProgramCache]: Analyzing trace with hash -174202238, now seen corresponding path program 17 times [2022-11-19 07:22:08,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:08,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863496197] [2022-11-19 07:22:08,147 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 07:22:08,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:08,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:08,148 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:08,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-19 07:22:08,369 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 07:22:08,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:08,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:22:08,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:08,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:08,932 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:08,932 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:08,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863496197] [2022-11-19 07:22:08,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863496197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:08,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:08,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:08,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514026888] [2022-11-19 07:22:08,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:08,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:08,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:08,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:08,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:08,934 INFO L87 Difference]: Start difference. First operand 1361 states and 4113 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:09,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:09,020 INFO L93 Difference]: Finished difference Result 2047 states and 6292 transitions. [2022-11-19 07:22:09,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:09,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:09,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:09,025 INFO L225 Difference]: With dead ends: 2047 [2022-11-19 07:22:09,026 INFO L226 Difference]: Without dead ends: 1834 [2022-11-19 07:22:09,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:09,026 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:09,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 49 Unchecked, 0.1s Time] [2022-11-19 07:22:09,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2022-11-19 07:22:09,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1361. [2022-11-19 07:22:09,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 1359 states have (on average 3.025018395879323) internal successors, (4111), 1360 states have internal predecessors, (4111), 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) [2022-11-19 07:22:09,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 4111 transitions. [2022-11-19 07:22:09,060 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 4111 transitions. Word has length 28 [2022-11-19 07:22:09,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:09,061 INFO L495 AbstractCegarLoop]: Abstraction has 1361 states and 4111 transitions. [2022-11-19 07:22:09,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:09,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 4111 transitions. [2022-11-19 07:22:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:09,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:09,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:09,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:09,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:09,277 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:09,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:09,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1718378366, now seen corresponding path program 18 times [2022-11-19 07:22:09,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:09,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74568550] [2022-11-19 07:22:09,278 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 07:22:09,279 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:09,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:09,280 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:09,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-19 07:22:09,518 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-19 07:22:09,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:09,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:22:09,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:10,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:10,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:10,105 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:10,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74568550] [2022-11-19 07:22:10,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74568550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:10,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:10,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:10,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529319627] [2022-11-19 07:22:10,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:10,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:10,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:10,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:10,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:10,106 INFO L87 Difference]: Start difference. First operand 1361 states and 4111 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:10,191 INFO L93 Difference]: Finished difference Result 1801 states and 5417 transitions. [2022-11-19 07:22:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:10,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:10,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:10,195 INFO L225 Difference]: With dead ends: 1801 [2022-11-19 07:22:10,195 INFO L226 Difference]: Without dead ends: 1630 [2022-11-19 07:22:10,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:10,195 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 47 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:10,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 31 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 47 Unchecked, 0.1s Time] [2022-11-19 07:22:10,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2022-11-19 07:22:10,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1359. [2022-11-19 07:22:10,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1357 states have (on average 3.028002947678703) internal successors, (4109), 1358 states have internal predecessors, (4109), 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) [2022-11-19 07:22:10,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 4109 transitions. [2022-11-19 07:22:10,227 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 4109 transitions. Word has length 28 [2022-11-19 07:22:10,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:10,227 INFO L495 AbstractCegarLoop]: Abstraction has 1359 states and 4109 transitions. [2022-11-19 07:22:10,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:10,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 4109 transitions. [2022-11-19 07:22:10,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:10,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:10,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:10,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-11-19 07:22:10,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:10,443 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:10,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:10,444 INFO L85 PathProgramCache]: Analyzing trace with hash -804580546, now seen corresponding path program 19 times [2022-11-19 07:22:10,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:10,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040248056] [2022-11-19 07:22:10,444 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 07:22:10,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:10,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:10,446 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:10,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-19 07:22:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:10,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:22:10,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:11,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:11,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:11,234 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:11,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040248056] [2022-11-19 07:22:11,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040248056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:11,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:11,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:11,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76110227] [2022-11-19 07:22:11,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:11,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:11,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:11,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:11,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:11,236 INFO L87 Difference]: Start difference. First operand 1359 states and 4109 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:11,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:11,298 INFO L93 Difference]: Finished difference Result 2101 states and 6301 transitions. [2022-11-19 07:22:11,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:11,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:11,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:11,302 INFO L225 Difference]: With dead ends: 2101 [2022-11-19 07:22:11,302 INFO L226 Difference]: Without dead ends: 1888 [2022-11-19 07:22:11,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:11,303 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 10 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:11,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 31 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 62 Unchecked, 0.1s Time] [2022-11-19 07:22:11,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2022-11-19 07:22:11,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1375. [2022-11-19 07:22:11,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1373 states have (on average 3.0254916241806264) internal successors, (4154), 1374 states have internal predecessors, (4154), 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) [2022-11-19 07:22:11,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 4154 transitions. [2022-11-19 07:22:11,330 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 4154 transitions. Word has length 28 [2022-11-19 07:22:11,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:11,330 INFO L495 AbstractCegarLoop]: Abstraction has 1375 states and 4154 transitions. [2022-11-19 07:22:11,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:11,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 4154 transitions. [2022-11-19 07:22:11,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:11,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:11,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:11,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:11,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:11,547 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:11,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:11,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1147442882, now seen corresponding path program 20 times [2022-11-19 07:22:11,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:11,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857093075] [2022-11-19 07:22:11,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:22:11,548 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:11,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:11,549 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:11,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-19 07:22:11,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 07:22:11,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:11,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:22:11,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:12,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:12,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:12,309 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:12,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857093075] [2022-11-19 07:22:12,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857093075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:12,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:12,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:12,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392824234] [2022-11-19 07:22:12,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:12,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:12,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:12,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:12,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:12,310 INFO L87 Difference]: Start difference. First operand 1375 states and 4154 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:12,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:12,464 INFO L93 Difference]: Finished difference Result 2162 states and 6606 transitions. [2022-11-19 07:22:12,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:12,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:12,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:12,468 INFO L225 Difference]: With dead ends: 2162 [2022-11-19 07:22:12,468 INFO L226 Difference]: Without dead ends: 1981 [2022-11-19 07:22:12,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:12,468 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:12,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 31 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 45 Unchecked, 0.1s Time] [2022-11-19 07:22:12,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2022-11-19 07:22:12,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1365. [2022-11-19 07:22:12,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1363 states have (on average 3.0227439471753486) internal successors, (4120), 1364 states have internal predecessors, (4120), 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) [2022-11-19 07:22:12,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 4120 transitions. [2022-11-19 07:22:12,493 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 4120 transitions. Word has length 28 [2022-11-19 07:22:12,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:12,493 INFO L495 AbstractCegarLoop]: Abstraction has 1365 states and 4120 transitions. [2022-11-19 07:22:12,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:12,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 4120 transitions. [2022-11-19 07:22:12,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:12,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:12,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:12,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-11-19 07:22:12,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:12,707 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:12,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:12,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1427064366, now seen corresponding path program 21 times [2022-11-19 07:22:12,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:12,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702367770] [2022-11-19 07:22:12,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:22:12,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:12,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:12,708 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:12,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-19 07:22:12,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 07:22:12,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:12,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:22:12,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:13,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:13,557 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:13,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702367770] [2022-11-19 07:22:13,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702367770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:13,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:13,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:13,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690970362] [2022-11-19 07:22:13,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:13,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:13,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:13,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:13,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:13,559 INFO L87 Difference]: Start difference. First operand 1365 states and 4120 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:13,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:13,653 INFO L93 Difference]: Finished difference Result 2040 states and 6260 transitions. [2022-11-19 07:22:13,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:13,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:13,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:13,658 INFO L225 Difference]: With dead ends: 2040 [2022-11-19 07:22:13,658 INFO L226 Difference]: Without dead ends: 1617 [2022-11-19 07:22:13,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:13,659 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:13,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 49 Unchecked, 0.1s Time] [2022-11-19 07:22:13,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-11-19 07:22:13,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1365. [2022-11-19 07:22:13,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1363 states have (on average 3.021276595744681) internal successors, (4118), 1364 states have internal predecessors, (4118), 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) [2022-11-19 07:22:13,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 4118 transitions. [2022-11-19 07:22:13,697 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 4118 transitions. Word has length 28 [2022-11-19 07:22:13,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:13,697 INFO L495 AbstractCegarLoop]: Abstraction has 1365 states and 4118 transitions. [2022-11-19 07:22:13,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:13,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 4118 transitions. [2022-11-19 07:22:13,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:13,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:13,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:13,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:13,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:13,907 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:13,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:13,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1752643028, now seen corresponding path program 22 times [2022-11-19 07:22:13,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:13,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22624330] [2022-11-19 07:22:13,908 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:22:13,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:13,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:13,909 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:13,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-19 07:22:14,127 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:22:14,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:14,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:22:14,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:14,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:14,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:14,668 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:14,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22624330] [2022-11-19 07:22:14,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22624330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:14,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:14,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:14,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355682196] [2022-11-19 07:22:14,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:14,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:14,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:14,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:14,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:14,670 INFO L87 Difference]: Start difference. First operand 1365 states and 4118 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:14,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:14,740 INFO L93 Difference]: Finished difference Result 1656 states and 4928 transitions. [2022-11-19 07:22:14,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:14,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:14,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:14,744 INFO L225 Difference]: With dead ends: 1656 [2022-11-19 07:22:14,744 INFO L226 Difference]: Without dead ends: 1555 [2022-11-19 07:22:14,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:14,745 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:14,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 31 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 45 Unchecked, 0.1s Time] [2022-11-19 07:22:14,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-11-19 07:22:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1353. [2022-11-19 07:22:14,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 1351 states have (on average 3.0325684678016285) internal successors, (4097), 1352 states have internal predecessors, (4097), 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) [2022-11-19 07:22:14,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 4097 transitions. [2022-11-19 07:22:14,780 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 4097 transitions. Word has length 28 [2022-11-19 07:22:14,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:14,780 INFO L495 AbstractCegarLoop]: Abstraction has 1353 states and 4097 transitions. [2022-11-19 07:22:14,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 4097 transitions. [2022-11-19 07:22:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:14,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:14,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:14,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-11-19 07:22:14,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:14,997 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:14,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:14,998 INFO L85 PathProgramCache]: Analyzing trace with hash 657972850, now seen corresponding path program 23 times [2022-11-19 07:22:14,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:14,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385052645] [2022-11-19 07:22:14,998 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 07:22:14,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:14,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:14,999 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:15,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-19 07:22:15,257 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 07:22:15,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:15,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:22:15,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:15,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:15,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:15,893 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:15,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385052645] [2022-11-19 07:22:15,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385052645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:15,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:15,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:15,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086350034] [2022-11-19 07:22:15,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:15,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:15,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:15,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:15,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:15,895 INFO L87 Difference]: Start difference. First operand 1353 states and 4097 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:16,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:16,068 INFO L93 Difference]: Finished difference Result 2133 states and 6529 transitions. [2022-11-19 07:22:16,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:16,069 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:16,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:16,074 INFO L225 Difference]: With dead ends: 2133 [2022-11-19 07:22:16,075 INFO L226 Difference]: Without dead ends: 2023 [2022-11-19 07:22:16,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:16,076 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:16,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 30 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 36 Unchecked, 0.2s Time] [2022-11-19 07:22:16,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2022-11-19 07:22:16,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1351. [2022-11-19 07:22:16,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1349 states have (on average 3.029651593773165) internal successors, (4087), 1350 states have internal predecessors, (4087), 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) [2022-11-19 07:22:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 4087 transitions. [2022-11-19 07:22:16,127 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 4087 transitions. Word has length 28 [2022-11-19 07:22:16,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:16,127 INFO L495 AbstractCegarLoop]: Abstraction has 1351 states and 4087 transitions. [2022-11-19 07:22:16,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:16,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 4087 transitions. [2022-11-19 07:22:16,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:16,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:16,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:16,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:16,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:16,344 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:16,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:16,345 INFO L85 PathProgramCache]: Analyzing trace with hash 458454306, now seen corresponding path program 24 times [2022-11-19 07:22:16,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:16,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937799919] [2022-11-19 07:22:16,345 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 07:22:16,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:16,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:16,346 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:16,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-19 07:22:16,562 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-19 07:22:16,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:16,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:22:16,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:17,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:17,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:17,131 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:17,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937799919] [2022-11-19 07:22:17,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937799919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:17,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:17,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:17,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618599283] [2022-11-19 07:22:17,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:17,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:17,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:17,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:17,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:17,133 INFO L87 Difference]: Start difference. First operand 1351 states and 4087 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:17,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:17,228 INFO L93 Difference]: Finished difference Result 2011 states and 6158 transitions. [2022-11-19 07:22:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:17,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:17,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:17,233 INFO L225 Difference]: With dead ends: 2011 [2022-11-19 07:22:17,233 INFO L226 Difference]: Without dead ends: 1481 [2022-11-19 07:22:17,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:17,234 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:17,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 31 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 57 Unchecked, 0.1s Time] [2022-11-19 07:22:17,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2022-11-19 07:22:17,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1355. [2022-11-19 07:22:17,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 1353 states have (on average 3.024390243902439) internal successors, (4092), 1354 states have internal predecessors, (4092), 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) [2022-11-19 07:22:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 4092 transitions. [2022-11-19 07:22:17,267 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 4092 transitions. Word has length 28 [2022-11-19 07:22:17,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:17,267 INFO L495 AbstractCegarLoop]: Abstraction has 1355 states and 4092 transitions. [2022-11-19 07:22:17,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:17,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 4092 transitions. [2022-11-19 07:22:17,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:17,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:17,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:17,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:17,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:17,485 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:17,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:17,485 INFO L85 PathProgramCache]: Analyzing trace with hash 148435450, now seen corresponding path program 25 times [2022-11-19 07:22:17,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:17,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763664604] [2022-11-19 07:22:17,486 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 07:22:17,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:17,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:17,488 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:17,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-19 07:22:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:17,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:22:17,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:18,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:18,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:18,320 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:18,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763664604] [2022-11-19 07:22:18,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763664604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:18,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:18,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:18,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256264069] [2022-11-19 07:22:18,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:18,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:18,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:18,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:18,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:18,322 INFO L87 Difference]: Start difference. First operand 1355 states and 4092 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:18,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:18,475 INFO L93 Difference]: Finished difference Result 2142 states and 6544 transitions. [2022-11-19 07:22:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:18,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:18,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:18,481 INFO L225 Difference]: With dead ends: 2142 [2022-11-19 07:22:18,481 INFO L226 Difference]: Without dead ends: 1791 [2022-11-19 07:22:18,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:18,482 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 12 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:18,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 31 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 49 Unchecked, 0.1s Time] [2022-11-19 07:22:18,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2022-11-19 07:22:18,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1343. [2022-11-19 07:22:18,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 1341 states have (on average 3.0149142431021625) internal successors, (4043), 1342 states have internal predecessors, (4043), 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) [2022-11-19 07:22:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 4043 transitions. [2022-11-19 07:22:18,511 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 4043 transitions. Word has length 28 [2022-11-19 07:22:18,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:18,511 INFO L495 AbstractCegarLoop]: Abstraction has 1343 states and 4043 transitions. [2022-11-19 07:22:18,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:18,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 4043 transitions. [2022-11-19 07:22:18,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:18,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:18,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:18,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-19 07:22:18,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:18,714 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:18,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:18,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1311213836, now seen corresponding path program 26 times [2022-11-19 07:22:18,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:18,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299781904] [2022-11-19 07:22:18,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:22:18,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:18,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:18,715 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:18,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-19 07:22:18,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 07:22:18,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:18,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:22:18,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:19,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:19,511 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:19,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299781904] [2022-11-19 07:22:19,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299781904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:19,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:19,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:19,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597586383] [2022-11-19 07:22:19,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:19,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:19,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:19,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:19,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:19,512 INFO L87 Difference]: Start difference. First operand 1343 states and 4043 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:19,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:19,669 INFO L93 Difference]: Finished difference Result 2025 states and 6190 transitions. [2022-11-19 07:22:19,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:19,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:19,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:19,674 INFO L225 Difference]: With dead ends: 2025 [2022-11-19 07:22:19,675 INFO L226 Difference]: Without dead ends: 1908 [2022-11-19 07:22:19,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:19,675 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:19,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 31 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 49 Unchecked, 0.1s Time] [2022-11-19 07:22:19,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2022-11-19 07:22:19,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1334. [2022-11-19 07:22:19,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1332 states have (on average 3.024774774774775) internal successors, (4029), 1333 states have internal predecessors, (4029), 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) [2022-11-19 07:22:19,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 4029 transitions. [2022-11-19 07:22:19,710 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 4029 transitions. Word has length 28 [2022-11-19 07:22:19,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:19,711 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 4029 transitions. [2022-11-19 07:22:19,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:19,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 4029 transitions. [2022-11-19 07:22:19,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:19,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:19,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:19,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:19,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:19,927 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:19,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:19,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1158245670, now seen corresponding path program 27 times [2022-11-19 07:22:19,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:19,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296711907] [2022-11-19 07:22:19,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:22:19,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:19,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:19,928 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:19,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-19 07:22:20,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 07:22:20,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:20,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:22:20,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:20,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:20,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:20,696 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:20,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296711907] [2022-11-19 07:22:20,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296711907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:20,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:20,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:20,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65568899] [2022-11-19 07:22:20,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:20,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:20,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:20,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:20,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:20,697 INFO L87 Difference]: Start difference. First operand 1334 states and 4029 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:20,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:20,841 INFO L93 Difference]: Finished difference Result 2339 states and 7047 transitions. [2022-11-19 07:22:20,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:20,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:20,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:20,846 INFO L225 Difference]: With dead ends: 2339 [2022-11-19 07:22:20,846 INFO L226 Difference]: Without dead ends: 2231 [2022-11-19 07:22:20,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:20,847 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 10 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:20,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 30 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 38 Unchecked, 0.1s Time] [2022-11-19 07:22:20,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-11-19 07:22:20,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1341. [2022-11-19 07:22:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1339 states have (on average 3.0246452576549663) internal successors, (4050), 1340 states have internal predecessors, (4050), 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) [2022-11-19 07:22:20,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 4050 transitions. [2022-11-19 07:22:20,871 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 4050 transitions. Word has length 28 [2022-11-19 07:22:20,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:20,871 INFO L495 AbstractCegarLoop]: Abstraction has 1341 states and 4050 transitions. [2022-11-19 07:22:20,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:20,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 4050 transitions. [2022-11-19 07:22:20,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:20,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:20,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:20,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2022-11-19 07:22:21,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:21,086 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:21,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:21,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1088204293, now seen corresponding path program 2 times [2022-11-19 07:22:21,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:21,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502205460] [2022-11-19 07:22:21,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:22:21,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:21,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:21,089 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:21,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-19 07:22:21,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 07:22:21,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:21,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:22:21,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:21,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:21,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:21,743 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:21,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502205460] [2022-11-19 07:22:21,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502205460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:21,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:21,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:22:21,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914295662] [2022-11-19 07:22:21,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:21,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:22:21,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:21,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:22:21,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:22:21,746 INFO L87 Difference]: Start difference. First operand 1341 states and 4050 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:22,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:22,222 INFO L93 Difference]: Finished difference Result 1599 states and 4697 transitions. [2022-11-19 07:22:22,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:22:22,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:22,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:22,225 INFO L225 Difference]: With dead ends: 1599 [2022-11-19 07:22:22,226 INFO L226 Difference]: Without dead ends: 1445 [2022-11-19 07:22:22,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:22:22,226 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 67 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:22,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 66 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:22:22,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2022-11-19 07:22:22,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1208. [2022-11-19 07:22:22,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1206 states have (on average 3.0199004975124377) internal successors, (3642), 1207 states have internal predecessors, (3642), 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) [2022-11-19 07:22:22,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 3642 transitions. [2022-11-19 07:22:22,256 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 3642 transitions. Word has length 28 [2022-11-19 07:22:22,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:22,256 INFO L495 AbstractCegarLoop]: Abstraction has 1208 states and 3642 transitions. [2022-11-19 07:22:22,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:22,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 3642 transitions. [2022-11-19 07:22:22,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:22,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:22,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:22,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:22,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:22,472 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:22,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:22,472 INFO L85 PathProgramCache]: Analyzing trace with hash -468070558, now seen corresponding path program 28 times [2022-11-19 07:22:22,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:22,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284725580] [2022-11-19 07:22:22,473 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:22:22,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:22,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:22,474 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:22,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-19 07:22:22,693 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:22:22,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:22,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:22:22,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:23,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:23,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:23,294 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:23,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284725580] [2022-11-19 07:22:23,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284725580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:23,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:23,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:23,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042024951] [2022-11-19 07:22:23,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:23,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:23,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:23,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:23,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:23,296 INFO L87 Difference]: Start difference. First operand 1208 states and 3642 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:23,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:23,370 INFO L93 Difference]: Finished difference Result 1889 states and 5792 transitions. [2022-11-19 07:22:23,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:23,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:23,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:23,375 INFO L225 Difference]: With dead ends: 1889 [2022-11-19 07:22:23,375 INFO L226 Difference]: Without dead ends: 1674 [2022-11-19 07:22:23,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:23,376 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:23,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 31 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 45 Unchecked, 0.1s Time] [2022-11-19 07:22:23,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-11-19 07:22:23,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1212. [2022-11-19 07:22:23,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 1210 states have (on average 3.0115702479338844) internal successors, (3644), 1211 states have internal predecessors, (3644), 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) [2022-11-19 07:22:23,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 3644 transitions. [2022-11-19 07:22:23,408 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 3644 transitions. Word has length 28 [2022-11-19 07:22:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:23,408 INFO L495 AbstractCegarLoop]: Abstraction has 1212 states and 3644 transitions. [2022-11-19 07:22:23,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:23,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 3644 transitions. [2022-11-19 07:22:23,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:23,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:23,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:23,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:23,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:23,625 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:23,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:23,626 INFO L85 PathProgramCache]: Analyzing trace with hash -731861898, now seen corresponding path program 29 times [2022-11-19 07:22:23,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:23,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174795474] [2022-11-19 07:22:23,627 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 07:22:23,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:23,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:23,628 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:23,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-19 07:22:23,876 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 07:22:23,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:23,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:22:23,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:24,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:24,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:24,496 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:24,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174795474] [2022-11-19 07:22:24,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174795474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:24,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:24,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:24,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501875231] [2022-11-19 07:22:24,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:24,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:24,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:24,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:24,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:24,498 INFO L87 Difference]: Start difference. First operand 1212 states and 3644 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:24,572 INFO L93 Difference]: Finished difference Result 2049 states and 6239 transitions. [2022-11-19 07:22:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:24,572 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:24,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:24,575 INFO L225 Difference]: With dead ends: 2049 [2022-11-19 07:22:24,575 INFO L226 Difference]: Without dead ends: 1451 [2022-11-19 07:22:24,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:24,576 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:24,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 66 Unchecked, 0.1s Time] [2022-11-19 07:22:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-11-19 07:22:24,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1208. [2022-11-19 07:22:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1206 states have (on average 2.9809286898839136) internal successors, (3595), 1207 states have internal predecessors, (3595), 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) [2022-11-19 07:22:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 3595 transitions. [2022-11-19 07:22:24,598 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 3595 transitions. Word has length 28 [2022-11-19 07:22:24,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:24,598 INFO L495 AbstractCegarLoop]: Abstraction has 1208 states and 3595 transitions. [2022-11-19 07:22:24,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:24,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 3595 transitions. [2022-11-19 07:22:24,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:24,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:24,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:24,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-11-19 07:22:24,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:24,800 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:24,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:24,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2103561978, now seen corresponding path program 30 times [2022-11-19 07:22:24,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:24,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427947623] [2022-11-19 07:22:24,801 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 07:22:24,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:24,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:24,803 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:24,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-19 07:22:25,020 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-19 07:22:25,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:25,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:22:25,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:25,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:25,637 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:25,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427947623] [2022-11-19 07:22:25,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427947623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:25,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:25,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:25,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328087385] [2022-11-19 07:22:25,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:25,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:25,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:25,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:25,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:25,639 INFO L87 Difference]: Start difference. First operand 1208 states and 3595 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:25,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:25,799 INFO L93 Difference]: Finished difference Result 2137 states and 6453 transitions. [2022-11-19 07:22:25,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:25,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:25,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:25,803 INFO L225 Difference]: With dead ends: 2137 [2022-11-19 07:22:25,803 INFO L226 Difference]: Without dead ends: 1896 [2022-11-19 07:22:25,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:25,804 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:25,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 31 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 44 Unchecked, 0.1s Time] [2022-11-19 07:22:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2022-11-19 07:22:25,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1194. [2022-11-19 07:22:25,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 1192 states have (on average 2.990771812080537) internal successors, (3565), 1193 states have internal predecessors, (3565), 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) [2022-11-19 07:22:25,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 3565 transitions. [2022-11-19 07:22:25,837 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 3565 transitions. Word has length 28 [2022-11-19 07:22:25,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:25,837 INFO L495 AbstractCegarLoop]: Abstraction has 1194 states and 3565 transitions. [2022-11-19 07:22:25,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:25,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 3565 transitions. [2022-11-19 07:22:25,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:25,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:25,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:25,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:26,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:26,054 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:26,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:26,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1165828646, now seen corresponding path program 31 times [2022-11-19 07:22:26,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:26,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550028089] [2022-11-19 07:22:26,055 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 07:22:26,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:26,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:26,056 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:26,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-19 07:22:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:26,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:22:26,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:26,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:22:26,861 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:26,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550028089] [2022-11-19 07:22:26,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550028089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:26,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:26,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:26,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458344509] [2022-11-19 07:22:26,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:26,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:26,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:22:26,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:26,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:26,864 INFO L87 Difference]: Start difference. First operand 1194 states and 3565 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:27,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:27,004 INFO L93 Difference]: Finished difference Result 1736 states and 5166 transitions. [2022-11-19 07:22:27,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:27,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:22:27,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:27,007 INFO L225 Difference]: With dead ends: 1736 [2022-11-19 07:22:27,007 INFO L226 Difference]: Without dead ends: 1303 [2022-11-19 07:22:27,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:22:27,008 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:27,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 30 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 36 Unchecked, 0.1s Time] [2022-11-19 07:22:27,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2022-11-19 07:22:27,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1184. [2022-11-19 07:22:27,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1182 states have (on average 2.9923857868020303) internal successors, (3537), 1183 states have internal predecessors, (3537), 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) [2022-11-19 07:22:27,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 3537 transitions. [2022-11-19 07:22:27,037 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 3537 transitions. Word has length 28 [2022-11-19 07:22:27,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:27,037 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 3537 transitions. [2022-11-19 07:22:27,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:27,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 3537 transitions. [2022-11-19 07:22:27,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:22:27,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:27,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:27,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:27,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:27,253 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-19 07:22:27,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:27,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1293229701, now seen corresponding path program 3 times [2022-11-19 07:22:27,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:22:27,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080977377] [2022-11-19 07:22:27,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:22:27,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:27,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:22:27,255 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:22:27,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-19 07:22:27,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 07:22:27,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-19 07:22:27,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:22:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:22:27,586 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 07:22:27,586 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:22:27,588 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-19 07:22:27,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-19 07:22:27,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-19 07:22:27,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-19 07:22:27,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-19 07:22:27,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-19 07:22:27,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-19 07:22:27,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-19 07:22:27,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-19 07:22:27,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-19 07:22:27,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-19 07:22:27,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-19 07:22:27,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-19 07:22:27,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-19 07:22:27,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-19 07:22:27,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-19 07:22:27,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:27,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:22:27,807 INFO L444 BasicCegarLoop]: Path program histogram: [31, 3, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:27,812 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 07:22:27,812 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:22:27,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:22:27 BasicIcfg [2022-11-19 07:22:27,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:22:27,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:22:27,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:22:27,900 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:22:27,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:28" (3/4) ... [2022-11-19 07:22:27,903 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:22:27,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:22:27,904 INFO L158 Benchmark]: Toolchain (without parser) took 61822.91ms. Allocated memory was 71.3MB in the beginning and 480.2MB in the end (delta: 408.9MB). Free memory was 51.8MB in the beginning and 251.3MB in the end (delta: -199.4MB). Peak memory consumption was 208.8MB. Max. memory is 16.1GB. [2022-11-19 07:22:27,904 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 71.3MB. Free memory was 52.2MB in the beginning and 52.1MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:22:27,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 674.59ms. Allocated memory is still 71.3MB. Free memory was 51.6MB in the beginning and 41.2MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:22:27,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.08ms. Allocated memory is still 71.3MB. Free memory was 41.2MB in the beginning and 38.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:22:27,905 INFO L158 Benchmark]: Boogie Preprocessor took 70.72ms. Allocated memory is still 71.3MB. Free memory was 38.5MB in the beginning and 36.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:22:27,905 INFO L158 Benchmark]: RCFGBuilder took 1201.77ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 36.4MB in the beginning and 65.5MB in the end (delta: -29.1MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-11-19 07:22:27,905 INFO L158 Benchmark]: TraceAbstraction took 59770.34ms. Allocated memory was 98.6MB in the beginning and 480.2MB in the end (delta: 381.7MB). Free memory was 64.5MB in the beginning and 251.3MB in the end (delta: -186.8MB). Peak memory consumption was 193.4MB. Max. memory is 16.1GB. [2022-11-19 07:22:27,906 INFO L158 Benchmark]: Witness Printer took 3.75ms. Allocated memory is still 480.2MB. Free memory is still 251.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:22:27,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 71.3MB. Free memory was 52.2MB in the beginning and 52.1MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 674.59ms. Allocated memory is still 71.3MB. Free memory was 51.6MB in the beginning and 41.2MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.08ms. Allocated memory is still 71.3MB. Free memory was 41.2MB in the beginning and 38.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.72ms. Allocated memory is still 71.3MB. Free memory was 38.5MB in the beginning and 36.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1201.77ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 36.4MB in the beginning and 65.5MB in the end (delta: -29.1MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * TraceAbstraction took 59770.34ms. Allocated memory was 98.6MB in the beginning and 480.2MB in the end (delta: 381.7MB). Free memory was 64.5MB in the beginning and 251.3MB in the end (delta: -186.8MB). Peak memory consumption was 193.4MB. Max. memory is 16.1GB. * Witness Printer took 3.75ms. Allocated memory is still 480.2MB. Free memory is still 251.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4s, 161 PlacesBefore, 56 PlacesAfterwards, 150 TransitionsBefore, 44 TransitionsAfterwards, 3570 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 139 TotalNumberOfCompositions, 9841 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5446, independent: 5228, independent conditional: 0, independent unconditional: 5228, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2587, independent: 2522, independent conditional: 0, independent unconditional: 2522, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2587, independent: 2495, independent conditional: 0, independent unconditional: 2495, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 92, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 609, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 554, dependent conditional: 0, dependent unconditional: 554, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5446, independent: 2706, independent conditional: 0, independent unconditional: 2706, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 2587, unknown conditional: 0, unknown unconditional: 2587] , Statistics on independence cache: Total cache size (in pairs): 364, Positive cache size: 336, Positive conditional cache size: 0, Positive unconditional cache size: 336, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, 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 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L726] 0 _Bool x$flush_delayed; [L739] 0 int *x$read_delayed_var; [L748] 0 _Bool weak$$choice0; [L749] 0 _Bool weak$$choice2; [L727] 0 int x$mem_tmp; [L713] 0 int __unbuffered_p0_EAX = 0; [L731] 0 _Bool x$r_buff0_thd3; [L732] 0 _Bool x$r_buff0_thd4; [L729] 0 _Bool x$r_buff0_thd1; [L715] 0 int __unbuffered_p1_EAX = 0; [L730] 0 _Bool x$r_buff0_thd2; [L719] 0 int __unbuffered_p3_EBX = 0; [L728] 0 _Bool x$r_buff0_thd0; [L721] 0 int a = 0; [L738] 0 _Bool x$read_delayed; [L711] 0 int __unbuffered_cnt = 0; [L723] 0 _Bool main$tmp_guard1; [L743] 0 _Bool x$w_buff1_used; [L722] 0 _Bool main$tmp_guard0; [L717] 0 int __unbuffered_p3_EAX = 0; [L741] 0 _Bool x$w_buff0_used; [L740] 0 int x$w_buff0; [L742] 0 int x$w_buff1; [L725] 0 int x = 0; [L734] 0 _Bool x$r_buff1_thd1; [L733] 0 _Bool x$r_buff1_thd0; [L745] 0 int y = 0; [L747] 0 int z = 0; [L737] 0 _Bool x$r_buff1_thd4; [L736] 0 _Bool x$r_buff1_thd3; [L735] 0 _Bool x$r_buff1_thd2; [L862] 0 pthread_t t685; [L863] FCALL, FORK 0 pthread_create(&t685, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t685, ((void *)0), P0, ((void *)0))=0, t685={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L864] 0 pthread_t t686; [L865] FCALL, FORK 0 pthread_create(&t686, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t686, ((void *)0), P1, ((void *)0))=1, t685={3:0}, t686={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L781] 2 x$w_buff1 = x$w_buff0 [L782] 2 x$w_buff0 = 1 [L783] 2 x$w_buff1_used = x$w_buff0_used [L784] 2 x$w_buff0_used = (_Bool)1 [L785] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L785] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L786] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L787] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L788] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L789] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L790] 2 x$r_buff1_thd4 = x$r_buff0_thd4 [L791] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L866] 0 pthread_t t687; [L794] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L867] FCALL, FORK 0 pthread_create(&t687, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t687, ((void *)0), P2, ((void *)0))=2, t685={3:0}, t686={7:0}, t687={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L868] 0 pthread_t t688; [L811] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L814] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L817] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L818] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L819] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L820] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L821] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L824] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L826] 3 return 0; [L869] FCALL, FORK 0 pthread_create(&t688, ((void *)0), P3, ((void *)0)) VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t688, ((void *)0), P3, ((void *)0))=3, t685={3:0}, t686={7:0}, t687={11:0}, t688={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L831] 4 z = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L834] 4 __unbuffered_p3_EAX = z VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L837] 4 __unbuffered_p3_EBX = a VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L840] 4 x = x$w_buff0_used && x$r_buff0_thd4 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd4 ? x$w_buff1 : x) [L841] 4 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$w_buff0_used [L842] 4 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$w_buff1_used [L843] 4 x$r_buff0_thd4 = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$r_buff0_thd4 [L844] 4 x$r_buff1_thd4 = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L753] 1 a = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L847] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L849] 4 return 0; [L756] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L757] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L758] 1 x$flush_delayed = weak$$choice2 [L759] 1 x$mem_tmp = x [L760] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L761] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L762] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L763] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L764] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L765] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L766] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L767] 1 __unbuffered_p0_EAX = x [L768] 1 x = x$flush_delayed ? x$mem_tmp : x [L769] 1 x$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L797] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L798] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L799] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L800] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L801] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L804] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L806] 2 return 0; [L774] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L776] 1 return 0; [L871] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L873] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L873] RET 0 assume_abort_if_not(main$tmp_guard0) [L875] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L876] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L877] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L878] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L879] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t685={3:0}, t686={7:0}, t687={11:0}, t688={15:0}, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L882] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L884] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 860]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 867]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 186 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 59.4s, OverallIterations: 40, TraceHistogramMax: 1, PathProgramHistogramMax: 31, EmptinessCheckTime: 0.2s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 834 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 834 mSDsluCounter, 1193 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1559 IncrementalHoareTripleChecker+Unchecked, 906 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2975 IncrementalHoareTripleChecker+Invalid, 4570 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 287 mSDtfsCounter, 2975 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 975 GetRequests, 811 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5156occurred in iteration=0, InterpolantAutomatonStates: 226, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 39 MinimizatonAttempts, 15358 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 20.1s InterpolantComputationTime, 1027 NumberOfCodeBlocks, 1027 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 960 ConstructedInterpolants, 558 QuantifiedInterpolants, 36877 SizeOfPredicates, 19 NumberOfNonLiveVariables, 7434 ConjunctsInSsa, 599 ConjunctsInUnsatCore, 39 InterpolantComputations, 39 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 07:22:27,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f52c24a8-daaa-4286-b460-305b7171d9f8/bin/utaipan-I9t0OCRTmS/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: UNKNOWN: Overapproximated counterexample