./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix055.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix055.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh --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 a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 --- 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-2329fc7 [2022-12-14 04:54:48,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:54:48,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:54:48,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:54:48,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:54:48,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:54:48,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:54:48,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:54:48,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:54:48,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:54:48,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:54:48,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:54:48,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:54:48,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:54:48,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:54:48,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:54:48,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:54:48,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:54:48,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:54:48,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:54:48,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:54:48,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:54:48,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:54:48,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:54:48,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:54:48,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:54:48,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:54:48,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:54:48,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:54:48,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:54:48,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:54:48,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:54:48,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:54:48,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:54:48,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:54:48,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:54:48,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:54:48,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:54:48,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:54:48,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:54:48,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:54:48,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 04:54:48,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:54:48,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:54:48,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:54:48,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:54:48,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:54:48,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:54:48,561 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:54:48,561 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:54:48,561 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:54:48,561 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 04:54:48,562 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:54:48,562 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:54:48,562 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 04:54:48,562 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 04:54:48,562 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:54:48,563 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 04:54:48,563 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 04:54:48,563 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 04:54:48,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 04:54:48,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 04:54:48,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:54:48,564 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 04:54:48,564 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 04:54:48,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 04:54:48,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 04:54:48,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:54:48,565 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 04:54:48,565 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 04:54:48,565 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 04:54:48,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:54:48,566 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 04:54:48,566 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 04:54:48,566 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:54:48,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:54:48,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:54:48,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:54:48,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:54:48,567 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 04:54:48,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:54:48,568 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 04:54:48,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 04:54:48,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:54:48,568 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_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 [2022-12-14 04:54:48,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:54:48,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:54:48,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:54:48,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:54:48,782 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:54:48,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/mix055.opt.i [2022-12-14 04:54:51,324 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:54:51,509 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:54:51,509 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/sv-benchmarks/c/pthread-wmm/mix055.opt.i [2022-12-14 04:54:51,519 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/data/ae2c3b64e/5fd2038eeee942a4bca58e41181de576/FLAG72f4b66b2 [2022-12-14 04:54:51,893 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/data/ae2c3b64e/5fd2038eeee942a4bca58e41181de576 [2022-12-14 04:54:51,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:54:51,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:54:51,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:54:51,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:54:51,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:54:51,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:54:51" (1/1) ... [2022-12-14 04:54:51,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610e08a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:51, skipping insertion in model container [2022-12-14 04:54:51,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:54:51" (1/1) ... [2022-12-14 04:54:51,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:54:51,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:54:52,034 WARN L237 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_cca7ccc9-fb19-475b-8d70-56d38003ebcf/sv-benchmarks/c/pthread-wmm/mix055.opt.i[944,957] [2022-12-14 04:54:52,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,133 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,133 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,133 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,141 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,141 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:54:52,164 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:54:52,173 WARN L237 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_cca7ccc9-fb19-475b-8d70-56d38003ebcf/sv-benchmarks/c/pthread-wmm/mix055.opt.i[944,957] [2022-12-14 04:54:52,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:54:52,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:54:52,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:54:52,231 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:54:52,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52 WrapperNode [2022-12-14 04:54:52,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:54:52,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:54:52,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:54:52,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:54:52,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (1/1) ... [2022-12-14 04:54:52,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (1/1) ... [2022-12-14 04:54:52,264 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 158 [2022-12-14 04:54:52,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:54:52,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:54:52,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:54:52,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:54:52,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (1/1) ... [2022-12-14 04:54:52,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (1/1) ... [2022-12-14 04:54:52,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (1/1) ... [2022-12-14 04:54:52,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (1/1) ... [2022-12-14 04:54:52,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (1/1) ... [2022-12-14 04:54:52,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (1/1) ... [2022-12-14 04:54:52,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (1/1) ... [2022-12-14 04:54:52,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (1/1) ... [2022-12-14 04:54:52,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:54:52,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:54:52,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:54:52,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:54:52,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (1/1) ... [2022-12-14 04:54:52,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:54:52,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:54:52,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:54:52,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 04:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 04:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 04:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 04:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 04:54:52,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 04:54:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 04:54:52,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 04:54:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-14 04:54:52,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-14 04:54:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-14 04:54:52,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-14 04:54:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 04:54:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 04:54:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:54:52,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:54:52,350 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 04:54:52,457 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:54:52,459 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:54:52,745 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:54:52,828 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:54:52,828 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 04:54:52,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:54:52 BoogieIcfgContainer [2022-12-14 04:54:52,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:54:52,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:54:52,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:54:52,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:54:52,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:54:51" (1/3) ... [2022-12-14 04:54:52,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f87ad7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:54:52, skipping insertion in model container [2022-12-14 04:54:52,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:54:52" (2/3) ... [2022-12-14 04:54:52,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f87ad7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:54:52, skipping insertion in model container [2022-12-14 04:54:52,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:54:52" (3/3) ... [2022-12-14 04:54:52,837 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055.opt.i [2022-12-14 04:54:52,855 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:54:52,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-14 04:54:52,855 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 04:54:52,907 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 04:54:52,936 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 04:54:52,948 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 145 transitions, 310 flow [2022-12-14 04:54:52,951 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 145 transitions, 310 flow [2022-12-14 04:54:52,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 310 flow [2022-12-14 04:54:53,010 INFO L130 PetriNetUnfolder]: 2/141 cut-off events. [2022-12-14 04:54:53,010 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 04:54:53,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 2/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-12-14 04:54:53,018 INFO L119 LiptonReduction]: Number of co-enabled transitions 3262 [2022-12-14 04:54:56,728 INFO L134 LiptonReduction]: Checked pairs total: 7960 [2022-12-14 04:54:56,728 INFO L136 LiptonReduction]: Total number of compositions: 133 [2022-12-14 04:54:56,734 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 42 transitions, 104 flow [2022-12-14 04:54:56,864 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3444 states, 3431 states have (on average 4.0104925677645005) internal successors, (13760), 3443 states have internal predecessors, (13760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:54:56,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:54:56,885 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;@3d2123a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:54:56,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-14 04:54:56,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 3444 states, 3431 states have (on average 4.0104925677645005) internal successors, (13760), 3443 states have internal predecessors, (13760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:54:56,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 04:54:56,898 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:54:56,899 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 04:54:56,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:54:56,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:54:56,903 INFO L85 PathProgramCache]: Analyzing trace with hash 588, now seen corresponding path program 1 times [2022-12-14 04:54:56,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:54:56,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221579585] [2022-12-14 04:54:56,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:54:56,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:54:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:54:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:54:57,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:54:57,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221579585] [2022-12-14 04:54:57,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221579585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:54:57,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:54:57,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 04:54:57,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969493468] [2022-12-14 04:54:57,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:54:57,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 04:54:57,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:54:57,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 04:54:57,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 04:54:57,032 INFO L87 Difference]: Start difference. First operand has 3444 states, 3431 states have (on average 4.0104925677645005) internal successors, (13760), 3443 states have internal predecessors, (13760), 0 states have call successors, (0), 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) [2022-12-14 04:54:57,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:54:57,126 INFO L93 Difference]: Finished difference Result 3242 states and 12656 transitions. [2022-12-14 04:54:57,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 04:54:57,128 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 [2022-12-14 04:54:57,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:54:57,163 INFO L225 Difference]: With dead ends: 3242 [2022-12-14 04:54:57,163 INFO L226 Difference]: Without dead ends: 3242 [2022-12-14 04:54:57,163 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 [2022-12-14 04:54:57,166 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:54:57,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:54:57,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3242 states. [2022-12-14 04:54:57,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3242 to 3242. [2022-12-14 04:54:57,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3242 states, 3237 states have (on average 3.909793018226753) internal successors, (12656), 3241 states have internal predecessors, (12656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:54:57,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3242 states to 3242 states and 12656 transitions. [2022-12-14 04:54:57,327 INFO L78 Accepts]: Start accepts. Automaton has 3242 states and 12656 transitions. Word has length 1 [2022-12-14 04:54:57,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:54:57,327 INFO L495 AbstractCegarLoop]: Abstraction has 3242 states and 12656 transitions. [2022-12-14 04:54:57,327 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) [2022-12-14 04:54:57,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3242 states and 12656 transitions. [2022-12-14 04:54:57,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 04:54:57,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:54:57,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:54:57,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 04:54:57,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:54:57,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:54:57,329 INFO L85 PathProgramCache]: Analyzing trace with hash -605109518, now seen corresponding path program 1 times [2022-12-14 04:54:57,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:54:57,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353012544] [2022-12-14 04:54:57,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:54:57,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:54:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:54:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:54:57,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:54:57,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353012544] [2022-12-14 04:54:57,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353012544] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:54:57,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:54:57,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 04:54:57,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774177931] [2022-12-14 04:54:57,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:54:57,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:54:57,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:54:57,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:54:57,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:54:57,582 INFO L87 Difference]: Start difference. First operand 3242 states and 12656 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:54:57,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:54:57,659 INFO L93 Difference]: Finished difference Result 2682 states and 10328 transitions. [2022-12-14 04:54:57,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:54:57,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 04:54:57,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:54:57,675 INFO L225 Difference]: With dead ends: 2682 [2022-12-14 04:54:57,675 INFO L226 Difference]: Without dead ends: 2602 [2022-12-14 04:54:57,675 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 [2022-12-14 04:54:57,676 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:54:57,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 8 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:54:57,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2022-12-14 04:54:57,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2602. [2022-12-14 04:54:57,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2600 states have (on average 3.870769230769231) internal successors, (10064), 2601 states have internal predecessors, (10064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:54:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 10064 transitions. [2022-12-14 04:54:57,771 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 10064 transitions. Word has length 9 [2022-12-14 04:54:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:54:57,772 INFO L495 AbstractCegarLoop]: Abstraction has 2602 states and 10064 transitions. [2022-12-14 04:54:57,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:54:57,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 10064 transitions. [2022-12-14 04:54:57,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 04:54:57,774 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:54:57,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:54:57,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 04:54:57,774 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:54:57,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:54:57,775 INFO L85 PathProgramCache]: Analyzing trace with hash -837808207, now seen corresponding path program 1 times [2022-12-14 04:54:57,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:54:57,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152016779] [2022-12-14 04:54:57,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:54:57,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:54:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:54:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:54:57,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:54:57,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152016779] [2022-12-14 04:54:57,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152016779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:54:57,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:54:57,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 04:54:57,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024788452] [2022-12-14 04:54:57,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:54:57,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 04:54:57,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:54:57,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 04:54:57,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:54:57,967 INFO L87 Difference]: Start difference. First operand 2602 states and 10064 transitions. Second operand has 4 states, 3 states have (on average 4.0) 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) [2022-12-14 04:54:58,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:54:58,102 INFO L93 Difference]: Finished difference Result 3252 states and 12304 transitions. [2022-12-14 04:54:58,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 04:54:58,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) 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 [2022-12-14 04:54:58,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:54:58,116 INFO L225 Difference]: With dead ends: 3252 [2022-12-14 04:54:58,117 INFO L226 Difference]: Without dead ends: 3252 [2022-12-14 04:54:58,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:54:58,117 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 38 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:54:58,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 18 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:54:58,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2022-12-14 04:54:58,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 2902. [2022-12-14 04:54:58,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2900 states have (on average 3.8772413793103446) internal successors, (11244), 2901 states have internal predecessors, (11244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:54:58,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 11244 transitions. [2022-12-14 04:54:58,206 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 11244 transitions. Word has length 12 [2022-12-14 04:54:58,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:54:58,206 INFO L495 AbstractCegarLoop]: Abstraction has 2902 states and 11244 transitions. [2022-12-14 04:54:58,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) 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) [2022-12-14 04:54:58,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 11244 transitions. [2022-12-14 04:54:58,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 04:54:58,209 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:54:58,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:54:58,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 04:54:58,209 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:54:58,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:54:58,210 INFO L85 PathProgramCache]: Analyzing trace with hash -837808156, now seen corresponding path program 1 times [2022-12-14 04:54:58,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:54:58,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806435668] [2022-12-14 04:54:58,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:54:58,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:54:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:54:58,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:54:58,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:54:58,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806435668] [2022-12-14 04:54:58,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806435668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:54:58,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:54:58,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 04:54:58,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107205336] [2022-12-14 04:54:58,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:54:58,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 04:54:58,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:54:58,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 04:54:58,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:54:58,658 INFO L87 Difference]: Start difference. First operand 2902 states and 11244 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-12-14 04:54:58,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:54:58,797 INFO L93 Difference]: Finished difference Result 2502 states and 9254 transitions. [2022-12-14 04:54:58,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:54:58,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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 [2022-12-14 04:54:58,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:54:58,806 INFO L225 Difference]: With dead ends: 2502 [2022-12-14 04:54:58,806 INFO L226 Difference]: Without dead ends: 2102 [2022-12-14 04:54:58,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:54:58,807 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 34 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:54:58,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 40 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:54:58,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2022-12-14 04:54:58,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 2102. [2022-12-14 04:54:58,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2102 states, 2101 states have (on average 3.7905759162303663) internal successors, (7964), 2101 states have internal predecessors, (7964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:54:58,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 7964 transitions. [2022-12-14 04:54:58,852 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 7964 transitions. Word has length 12 [2022-12-14 04:54:58,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:54:58,852 INFO L495 AbstractCegarLoop]: Abstraction has 2102 states and 7964 transitions. [2022-12-14 04:54:58,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-12-14 04:54:58,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 7964 transitions. [2022-12-14 04:54:58,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 04:54:58,853 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:54:58,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:54:58,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 04:54:58,854 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:54:58,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:54:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash 2139311405, now seen corresponding path program 1 times [2022-12-14 04:54:58,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:54:58,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727382090] [2022-12-14 04:54:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:54:58,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:54:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:54:59,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:54:59,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:54:59,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727382090] [2022-12-14 04:54:59,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727382090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:54:59,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:54:59,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:54:59,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256128997] [2022-12-14 04:54:59,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:54:59,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:54:59,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:54:59,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:54:59,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:54:59,151 INFO L87 Difference]: Start difference. First operand 2102 states and 7964 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-12-14 04:54:59,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:54:59,287 INFO L93 Difference]: Finished difference Result 2312 states and 8502 transitions. [2022-12-14 04:54:59,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 04:54:59,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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 [2022-12-14 04:54:59,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:54:59,298 INFO L225 Difference]: With dead ends: 2312 [2022-12-14 04:54:59,298 INFO L226 Difference]: Without dead ends: 1962 [2022-12-14 04:54:59,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:54:59,299 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 31 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:54:59,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 24 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:54:59,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-12-14 04:54:59,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2022-12-14 04:54:59,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 3.7593064762876085) internal successors, (7372), 1961 states have internal predecessors, (7372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:54:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 7372 transitions. [2022-12-14 04:54:59,355 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 7372 transitions. Word has length 13 [2022-12-14 04:54:59,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:54:59,356 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 7372 transitions. [2022-12-14 04:54:59,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-12-14 04:54:59,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 7372 transitions. [2022-12-14 04:54:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 04:54:59,358 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:54:59,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:54:59,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 04:54:59,358 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:54:59,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:54:59,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1891702439, now seen corresponding path program 1 times [2022-12-14 04:54:59,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:54:59,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800768612] [2022-12-14 04:54:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:54:59,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:54:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:54:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:54:59,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:54:59,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800768612] [2022-12-14 04:54:59,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800768612] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:54:59,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:54:59,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 04:54:59,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380222787] [2022-12-14 04:54:59,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:54:59,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 04:54:59,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:54:59,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 04:54:59,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:54:59,814 INFO L87 Difference]: Start difference. First operand 1962 states and 7372 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:54:59,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:54:59,955 INFO L93 Difference]: Finished difference Result 2130 states and 7766 transitions. [2022-12-14 04:54:59,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:54:59,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 04:54:59,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:54:59,965 INFO L225 Difference]: With dead ends: 2130 [2022-12-14 04:54:59,965 INFO L226 Difference]: Without dead ends: 1850 [2022-12-14 04:54:59,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:54:59,966 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 53 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:54:59,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 32 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:54:59,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2022-12-14 04:55:00,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1850. [2022-12-14 04:55:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1850 states, 1849 states have (on average 3.7187669010275823) internal successors, (6876), 1849 states have internal predecessors, (6876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 6876 transitions. [2022-12-14 04:55:00,020 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 6876 transitions. Word has length 14 [2022-12-14 04:55:00,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:00,021 INFO L495 AbstractCegarLoop]: Abstraction has 1850 states and 6876 transitions. [2022-12-14 04:55:00,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:00,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 6876 transitions. [2022-12-14 04:55:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 04:55:00,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:00,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:00,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 04:55:00,025 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:00,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:00,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1048174470, now seen corresponding path program 1 times [2022-12-14 04:55:00,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:55:00,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305454303] [2022-12-14 04:55:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:00,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:55:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:00,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:55:00,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305454303] [2022-12-14 04:55:00,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305454303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:00,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:00,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:55:00,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110944918] [2022-12-14 04:55:00,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:00,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 04:55:00,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:55:00,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 04:55:00,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:55:00,164 INFO L87 Difference]: Start difference. First operand 1850 states and 6876 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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) [2022-12-14 04:55:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:00,250 INFO L93 Difference]: Finished difference Result 1850 states and 6260 transitions. [2022-12-14 04:55:00,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 04:55:00,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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 [2022-12-14 04:55:00,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:00,255 INFO L225 Difference]: With dead ends: 1850 [2022-12-14 04:55:00,255 INFO L226 Difference]: Without dead ends: 1450 [2022-12-14 04:55:00,255 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 [2022-12-14 04:55:00,256 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 45 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:00,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 12 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:00,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-12-14 04:55:00,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1450. [2022-12-14 04:55:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 3.365079365079365) internal successors, (4876), 1449 states have internal predecessors, (4876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 4876 transitions. [2022-12-14 04:55:00,282 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 4876 transitions. Word has length 16 [2022-12-14 04:55:00,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:00,282 INFO L495 AbstractCegarLoop]: Abstraction has 1450 states and 4876 transitions. [2022-12-14 04:55:00,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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) [2022-12-14 04:55:00,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 4876 transitions. [2022-12-14 04:55:00,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 04:55:00,284 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:00,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:00,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 04:55:00,284 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:00,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:00,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1246819011, now seen corresponding path program 1 times [2022-12-14 04:55:00,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:55:00,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777358452] [2022-12-14 04:55:00,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:00,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:55:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:00,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:00,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:55:00,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777358452] [2022-12-14 04:55:00,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777358452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:00,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:00,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 04:55:00,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566742090] [2022-12-14 04:55:00,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:00,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:55:00,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:55:00,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:55:00,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:55:00,417 INFO L87 Difference]: Start difference. First operand 1450 states and 4876 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:00,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:00,534 INFO L93 Difference]: Finished difference Result 1176 states and 3588 transitions. [2022-12-14 04:55:00,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 04:55:00,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-12-14 04:55:00,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:00,537 INFO L225 Difference]: With dead ends: 1176 [2022-12-14 04:55:00,537 INFO L226 Difference]: Without dead ends: 920 [2022-12-14 04:55:00,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 04:55:00,537 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 88 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:00,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 16 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:00,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-12-14 04:55:00,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 920. [2022-12-14 04:55:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 919 states have (on average 2.998911860718172) internal successors, (2756), 919 states have internal predecessors, (2756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:00,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 2756 transitions. [2022-12-14 04:55:00,559 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 2756 transitions. Word has length 17 [2022-12-14 04:55:00,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:00,559 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 2756 transitions. [2022-12-14 04:55:00,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 2756 transitions. [2022-12-14 04:55:00,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 04:55:00,561 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:00,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:00,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 04:55:00,561 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:00,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1058268122, now seen corresponding path program 1 times [2022-12-14 04:55:00,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:55:00,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540229306] [2022-12-14 04:55:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:00,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:55:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:01,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:55:01,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540229306] [2022-12-14 04:55:01,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540229306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:01,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:01,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 04:55:01,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090060566] [2022-12-14 04:55:01,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:01,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 04:55:01,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:55:01,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 04:55:01,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:55:01,092 INFO L87 Difference]: Start difference. First operand 920 states and 2756 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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) [2022-12-14 04:55:01,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:01,514 INFO L93 Difference]: Finished difference Result 1741 states and 5003 transitions. [2022-12-14 04:55:01,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 04:55:01,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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 [2022-12-14 04:55:01,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:01,517 INFO L225 Difference]: With dead ends: 1741 [2022-12-14 04:55:01,517 INFO L226 Difference]: Without dead ends: 1354 [2022-12-14 04:55:01,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-12-14 04:55:01,518 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 74 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:01,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 33 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 04:55:01,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2022-12-14 04:55:01,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 932. [2022-12-14 04:55:01,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 931 states have (on average 2.888292158968851) internal successors, (2689), 931 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:01,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 2689 transitions. [2022-12-14 04:55:01,535 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 2689 transitions. Word has length 19 [2022-12-14 04:55:01,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:01,535 INFO L495 AbstractCegarLoop]: Abstraction has 932 states and 2689 transitions. [2022-12-14 04:55:01,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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) [2022-12-14 04:55:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 2689 transitions. [2022-12-14 04:55:01,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 04:55:01,537 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:01,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:01,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 04:55:01,537 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:01,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:01,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1737025008, now seen corresponding path program 1 times [2022-12-14 04:55:01,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:55:01,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635268584] [2022-12-14 04:55:01,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:01,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:55:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:01,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:01,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:55:01,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635268584] [2022-12-14 04:55:01,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635268584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:01,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:01,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 04:55:01,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912320035] [2022-12-14 04:55:01,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:01,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 04:55:01,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:55:01,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 04:55:01,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:55:01,680 INFO L87 Difference]: Start difference. First operand 932 states and 2689 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) [2022-12-14 04:55:01,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:01,800 INFO L93 Difference]: Finished difference Result 748 states and 2136 transitions. [2022-12-14 04:55:01,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:55:01,800 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 [2022-12-14 04:55:01,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:01,801 INFO L225 Difference]: With dead ends: 748 [2022-12-14 04:55:01,801 INFO L226 Difference]: Without dead ends: 660 [2022-12-14 04:55:01,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-12-14 04:55:01,802 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 121 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:01,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 20 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:01,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-12-14 04:55:01,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 660. [2022-12-14 04:55:01,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 659 states have (on average 2.9028831562974204) internal successors, (1913), 659 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 1913 transitions. [2022-12-14 04:55:01,811 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 1913 transitions. Word has length 19 [2022-12-14 04:55:01,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:01,812 INFO L495 AbstractCegarLoop]: Abstraction has 660 states and 1913 transitions. [2022-12-14 04:55:01,812 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) [2022-12-14 04:55:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 1913 transitions. [2022-12-14 04:55:01,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 04:55:01,813 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:01,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:01,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 04:55:01,814 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:01,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:01,814 INFO L85 PathProgramCache]: Analyzing trace with hash 78644669, now seen corresponding path program 1 times [2022-12-14 04:55:01,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:55:01,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293527410] [2022-12-14 04:55:01,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:01,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:55:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:02,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:55:02,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293527410] [2022-12-14 04:55:02,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293527410] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:02,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:02,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 04:55:02,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988746767] [2022-12-14 04:55:02,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:02,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:55:02,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:55:02,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:55:02,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:55:02,344 INFO L87 Difference]: Start difference. First operand 660 states and 1913 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:02,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:02,500 INFO L93 Difference]: Finished difference Result 923 states and 2571 transitions. [2022-12-14 04:55:02,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:55:02,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 04:55:02,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:02,502 INFO L225 Difference]: With dead ends: 923 [2022-12-14 04:55:02,502 INFO L226 Difference]: Without dead ends: 596 [2022-12-14 04:55:02,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:55:02,503 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 39 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:02,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 19 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:02,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-12-14 04:55:02,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 592. [2022-12-14 04:55:02,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 591 states have (on average 2.649746192893401) internal successors, (1566), 591 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:02,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1566 transitions. [2022-12-14 04:55:02,516 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1566 transitions. Word has length 22 [2022-12-14 04:55:02,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:02,516 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 1566 transitions. [2022-12-14 04:55:02,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:02,516 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1566 transitions. [2022-12-14 04:55:02,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 04:55:02,518 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:02,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:02,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 04:55:02,518 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:02,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:02,518 INFO L85 PathProgramCache]: Analyzing trace with hash -825166877, now seen corresponding path program 2 times [2022-12-14 04:55:02,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:55:02,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412858849] [2022-12-14 04:55:02,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:02,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:55:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:02,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:02,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:55:02,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412858849] [2022-12-14 04:55:02,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412858849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:02,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:02,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 04:55:02,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463486962] [2022-12-14 04:55:02,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:02,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 04:55:02,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:55:02,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 04:55:02,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 04:55:02,693 INFO L87 Difference]: Start difference. First operand 592 states and 1566 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:02,806 INFO L93 Difference]: Finished difference Result 555 states and 1492 transitions. [2022-12-14 04:55:02,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 04:55:02,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 04:55:02,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:02,807 INFO L225 Difference]: With dead ends: 555 [2022-12-14 04:55:02,807 INFO L226 Difference]: Without dead ends: 180 [2022-12-14 04:55:02,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-12-14 04:55:02,808 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 148 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:02,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 14 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:02,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-12-14 04:55:02,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-12-14 04:55:02,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.4916201117318435) internal successors, (446), 179 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:02,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 446 transitions. [2022-12-14 04:55:02,812 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 446 transitions. Word has length 22 [2022-12-14 04:55:02,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:02,812 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 446 transitions. [2022-12-14 04:55:02,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:02,812 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 446 transitions. [2022-12-14 04:55:02,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 04:55:02,813 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:02,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:02,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 04:55:02,813 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:02,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:02,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1498160007, now seen corresponding path program 1 times [2022-12-14 04:55:02,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:55:02,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023158467] [2022-12-14 04:55:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:02,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:55:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:03,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:55:03,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023158467] [2022-12-14 04:55:03,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023158467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:03,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:03,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 04:55:03,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706130926] [2022-12-14 04:55:03,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:03,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 04:55:03,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:55:03,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 04:55:03,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-14 04:55:03,505 INFO L87 Difference]: Start difference. First operand 180 states and 446 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:03,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:03,785 INFO L93 Difference]: Finished difference Result 243 states and 591 transitions. [2022-12-14 04:55:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 04:55:03,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-12-14 04:55:03,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:03,785 INFO L225 Difference]: With dead ends: 243 [2022-12-14 04:55:03,785 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 04:55:03,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-14 04:55:03,786 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 64 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:03,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 35 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 04:55:03,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 04:55:03,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-12-14 04:55:03,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 2.287769784172662) internal successors, (318), 139 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:03,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 318 transitions. [2022-12-14 04:55:03,788 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 318 transitions. Word has length 26 [2022-12-14 04:55:03,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:03,788 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 318 transitions. [2022-12-14 04:55:03,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 318 transitions. [2022-12-14 04:55:03,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 04:55:03,789 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:03,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:03,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 04:55:03,789 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:03,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:03,789 INFO L85 PathProgramCache]: Analyzing trace with hash 185965703, now seen corresponding path program 2 times [2022-12-14 04:55:03,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:55:03,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809606221] [2022-12-14 04:55:03,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:03,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:55:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:55:03,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 04:55:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:55:03,858 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 04:55:03,858 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 04:55:03,859 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-14 04:55:03,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-14 04:55:03,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-14 04:55:03,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-14 04:55:03,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-14 04:55:03,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 04:55:03,863 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:03,867 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 04:55:03,867 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 04:55:03,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:55:03 BasicIcfg [2022-12-14 04:55:03,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 04:55:03,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 04:55:03,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 04:55:03,907 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 04:55:03,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:54:52" (3/4) ... [2022-12-14 04:55:03,909 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 04:55:03,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 04:55:03,909 INFO L158 Benchmark]: Toolchain (without parser) took 12013.26ms. Allocated memory was 142.6MB in the beginning and 339.7MB in the end (delta: 197.1MB). Free memory was 105.8MB in the beginning and 192.8MB in the end (delta: -87.0MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. [2022-12-14 04:55:03,909 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:55:03,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.94ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 78.6MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 04:55:03,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.56ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 75.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:55:03,910 INFO L158 Benchmark]: Boogie Preprocessor took 20.77ms. Allocated memory is still 142.6MB. Free memory was 75.9MB in the beginning and 73.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:55:03,910 INFO L158 Benchmark]: RCFGBuilder took 543.80ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 73.8MB in the beginning and 150.5MB in the end (delta: -76.7MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2022-12-14 04:55:03,910 INFO L158 Benchmark]: TraceAbstraction took 11074.22ms. Allocated memory was 195.0MB in the beginning and 339.7MB in the end (delta: 144.7MB). Free memory was 150.5MB in the beginning and 192.8MB in the end (delta: -42.4MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. [2022-12-14 04:55:03,910 INFO L158 Benchmark]: Witness Printer took 2.41ms. Allocated memory is still 339.7MB. Free memory is still 192.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:55:03,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.94ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 78.6MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.56ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 75.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.77ms. Allocated memory is still 142.6MB. Free memory was 75.9MB in the beginning and 73.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 543.80ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 73.8MB in the beginning and 150.5MB in the end (delta: -76.7MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11074.22ms. Allocated memory was 195.0MB in the beginning and 339.7MB in the end (delta: 144.7MB). Free memory was 150.5MB in the beginning and 192.8MB in the end (delta: -42.4MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. * Witness Printer took 2.41ms. Allocated memory is still 339.7MB. Free memory is still 192.8MB. 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: 3.8s, 156 PlacesBefore, 54 PlacesAfterwards, 145 TransitionsBefore, 42 TransitionsAfterwards, 3262 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 133 TotalNumberOfCompositions, 7960 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4914, independent: 4730, independent conditional: 0, independent unconditional: 4730, dependent: 184, dependent conditional: 0, dependent unconditional: 184, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2375, independent: 2323, independent conditional: 0, independent unconditional: 2323, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2375, independent: 2295, independent conditional: 0, independent unconditional: 2295, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 80, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 207, dependent conditional: 0, dependent unconditional: 207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4914, independent: 2407, independent conditional: 0, independent unconditional: 2407, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 2375, unknown conditional: 0, unknown unconditional: 2375] , Statistics on independence cache: Total cache size (in pairs): 296, Positive cache size: 273, Positive conditional cache size: 0, Positive unconditional cache size: 273, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, 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: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int a = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L722] 0 int y = 0; [L724] 0 int z = 0; [L725] 0 _Bool z$flush_delayed; [L726] 0 int z$mem_tmp; [L727] 0 _Bool z$r_buff0_thd0; [L728] 0 _Bool z$r_buff0_thd1; [L729] 0 _Bool z$r_buff0_thd2; [L730] 0 _Bool z$r_buff0_thd3; [L731] 0 _Bool z$r_buff0_thd4; [L732] 0 _Bool z$r_buff1_thd0; [L733] 0 _Bool z$r_buff1_thd1; [L734] 0 _Bool z$r_buff1_thd2; [L735] 0 _Bool z$r_buff1_thd3; [L736] 0 _Bool z$r_buff1_thd4; [L737] 0 _Bool z$read_delayed; [L738] 0 int *z$read_delayed_var; [L739] 0 int z$w_buff0; [L740] 0 _Bool z$w_buff0_used; [L741] 0 int z$w_buff1; [L742] 0 _Bool z$w_buff1_used; [L743] 0 _Bool weak$$choice0; [L744] 0 _Bool weak$$choice2; [L836] 0 pthread_t t1461; [L837] FCALL, FORK 0 pthread_create(&t1461, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1461, ((void *)0), P0, ((void *)0))=-3, t1461={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t1462; [L839] FCALL, FORK 0 pthread_create(&t1462, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1462, ((void *)0), P1, ((void *)0))=-2, t1461={5:0}, t1462={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t1463; [L841] FCALL, FORK 0 pthread_create(&t1463, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1463, ((void *)0), P2, ((void *)0))=-1, t1461={5:0}, t1462={6:0}, t1463={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L842] 0 pthread_t t1464; [L843] FCALL, FORK 0 pthread_create(&t1464, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1464, ((void *)0), P3, ((void *)0))=0, t1461={5:0}, t1462={6:0}, t1463={7:0}, t1464={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L798] 4 z$w_buff1 = z$w_buff0 [L799] 4 z$w_buff0 = 2 [L800] 4 z$w_buff1_used = z$w_buff0_used [L801] 4 z$w_buff0_used = (_Bool)1 [L802] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L802] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L803] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L804] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L805] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L806] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L807] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L808] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L811] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=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, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L748] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, 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, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, 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=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L763] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, 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=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L766] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, 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=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L771] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L773] 2 return 0; [L778] 3 y = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=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=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L781] 3 z = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=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=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L784] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L785] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L786] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L787] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L788] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=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=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L791] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L793] 3 return 0; [L814] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L815] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L816] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L817] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L818] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=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$$choice0=0, weak$$choice2=0, x=2, y=1, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L821] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L823] 4 return 0; [L845] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1461={5:0}, t1462={6:0}, t1463={7:0}, t1464={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L847] RET 0 assume_abort_if_not(main$tmp_guard0) [L849] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L850] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L851] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L852] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L853] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=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, t1461={5:0}, t1462={6:0}, t1463={7:0}, t1464={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L856] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L857] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L858] 0 z$flush_delayed = weak$$choice2 [L859] 0 z$mem_tmp = z [L860] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L861] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L862] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L863] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L864] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L866] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L867] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 0) [L868] 0 z = z$flush_delayed ? z$mem_tmp : z [L869] 0 z$flush_delayed = (_Bool)0 [L871] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: 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: 834]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 843]: 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: 837]: 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: 839]: 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: 841]: 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, 179 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 748 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 748 mSDsluCounter, 275 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 187 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1379 IncrementalHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 88 mSDtfsCounter, 1379 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3444occurred in iteration=0, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 776 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 2068 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 [2022-12-14 04:55:03,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix055.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh --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 a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 --- 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-2329fc7 [2022-12-14 04:55:05,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:55:05,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:55:05,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:55:05,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:55:05,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:55:05,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:55:05,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:55:05,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:55:05,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:55:05,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:55:05,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:55:05,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:55:05,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:55:05,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:55:05,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:55:05,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:55:05,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:55:05,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:55:05,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:55:05,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:55:05,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:55:05,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:55:05,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:55:05,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:55:05,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:55:05,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:55:05,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:55:05,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:55:05,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:55:05,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:55:05,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:55:05,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:55:05,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:55:05,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:55:05,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:55:05,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:55:05,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:55:05,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:55:05,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:55:05,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:55:05,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 04:55:05,583 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:55:05,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:55:05,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:55:05,584 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:55:05,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:55:05,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:55:05,585 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:55:05,585 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:55:05,585 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:55:05,585 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:55:05,585 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:55:05,586 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:55:05,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 04:55:05,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 04:55:05,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:55:05,587 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 04:55:05,587 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 04:55:05,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 04:55:05,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 04:55:05,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:55:05,588 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 04:55:05,588 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 04:55:05,588 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 04:55:05,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:55:05,588 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 04:55:05,589 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 04:55:05,589 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 04:55:05,589 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 04:55:05,589 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:55:05,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:55:05,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 04:55:05,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:55:05,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:55:05,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:55:05,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:55:05,591 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 04:55:05,591 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 04:55:05,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:55:05,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 04:55:05,591 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_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh 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 -> a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 [2022-12-14 04:55:05,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:55:05,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:55:05,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:55:05,816 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:55:05,816 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:55:05,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/mix055.opt.i [2022-12-14 04:55:08,303 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:55:08,460 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:55:08,461 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/sv-benchmarks/c/pthread-wmm/mix055.opt.i [2022-12-14 04:55:08,471 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/data/c1abadc0c/57944f2e7b814b1289a639c2c43142c2/FLAGb21d95bc2 [2022-12-14 04:55:08,481 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/data/c1abadc0c/57944f2e7b814b1289a639c2c43142c2 [2022-12-14 04:55:08,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:55:08,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:55:08,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:55:08,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:55:08,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:55:08,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:08,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5263272f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08, skipping insertion in model container [2022-12-14 04:55:08,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:08,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:55:08,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:55:08,677 WARN L237 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_cca7ccc9-fb19-475b-8d70-56d38003ebcf/sv-benchmarks/c/pthread-wmm/mix055.opt.i[944,957] [2022-12-14 04:55:08,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:55:08,881 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:55:08,893 WARN L237 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_cca7ccc9-fb19-475b-8d70-56d38003ebcf/sv-benchmarks/c/pthread-wmm/mix055.opt.i[944,957] [2022-12-14 04:55:08,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 04:55:08,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 04:55:08,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:55:08,977 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:55:08,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08 WrapperNode [2022-12-14 04:55:08,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:55:08,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:55:08,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:55:08,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:55:08,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:09,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:09,024 INFO L138 Inliner]: procedures = 180, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 159 [2022-12-14 04:55:09,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:55:09,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:55:09,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:55:09,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:55:09,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:09,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:09,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:09,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:09,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:09,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:09,052 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:09,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:09,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:55:09,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:55:09,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:55:09,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:55:09,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (1/1) ... [2022-12-14 04:55:09,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:55:09,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:55:09,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:55:09,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:55:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 04:55:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:55:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 04:55:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 04:55:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 04:55:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 04:55:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 04:55:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 04:55:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 04:55:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 04:55:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-14 04:55:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-14 04:55:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-14 04:55:09,120 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-14 04:55:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 04:55:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:55:09,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:55:09,121 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 04:55:09,248 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:55:09,250 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:55:09,524 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:55:09,626 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:55:09,626 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 04:55:09,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:55:09 BoogieIcfgContainer [2022-12-14 04:55:09,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:55:09,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:55:09,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:55:09,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:55:09,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:55:08" (1/3) ... [2022-12-14 04:55:09,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d3bd0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:55:09, skipping insertion in model container [2022-12-14 04:55:09,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:55:08" (2/3) ... [2022-12-14 04:55:09,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d3bd0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:55:09, skipping insertion in model container [2022-12-14 04:55:09,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:55:09" (3/3) ... [2022-12-14 04:55:09,638 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055.opt.i [2022-12-14 04:55:09,653 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:55:09,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-14 04:55:09,654 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 04:55:09,701 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 04:55:09,724 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 04:55:09,735 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 146 transitions, 312 flow [2022-12-14 04:55:09,737 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 146 transitions, 312 flow [2022-12-14 04:55:09,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 312 flow [2022-12-14 04:55:09,780 INFO L130 PetriNetUnfolder]: 2/142 cut-off events. [2022-12-14 04:55:09,780 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 04:55:09,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 2/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-12-14 04:55:09,786 INFO L119 LiptonReduction]: Number of co-enabled transitions 3262 [2022-12-14 04:55:16,926 INFO L134 LiptonReduction]: Checked pairs total: 8180 [2022-12-14 04:55:16,926 INFO L136 LiptonReduction]: Total number of compositions: 133 [2022-12-14 04:55:16,932 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 42 transitions, 104 flow [2022-12-14 04:55:17,064 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3444 states, 3431 states have (on average 4.0104925677645005) internal successors, (13760), 3443 states have internal predecessors, (13760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:17,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:55:17,084 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;@73065568, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:55:17,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-14 04:55:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 3444 states, 3431 states have (on average 4.0104925677645005) internal successors, (13760), 3443 states have internal predecessors, (13760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:17,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 04:55:17,096 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:17,097 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 04:55:17,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:17,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:17,102 INFO L85 PathProgramCache]: Analyzing trace with hash 591, now seen corresponding path program 1 times [2022-12-14 04:55:17,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:55:17,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908381116] [2022-12-14 04:55:17,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:17,111 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 [2022-12-14 04:55:17,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:55:17,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:55:17,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:17,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 04:55:17,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:55:17,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:17,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:55:17,172 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:55:17,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908381116] [2022-12-14 04:55:17,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908381116] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:17,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:17,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 04:55:17,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282721307] [2022-12-14 04:55:17,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:17,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 04:55:17,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:55:17,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 04:55:17,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 04:55:17,213 INFO L87 Difference]: Start difference. First operand has 3444 states, 3431 states have (on average 4.0104925677645005) internal successors, (13760), 3443 states have internal predecessors, (13760), 0 states have call successors, (0), 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) [2022-12-14 04:55:17,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:17,431 INFO L93 Difference]: Finished difference Result 3242 states and 12656 transitions. [2022-12-14 04:55:17,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 04:55:17,434 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 [2022-12-14 04:55:17,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:17,482 INFO L225 Difference]: With dead ends: 3242 [2022-12-14 04:55:17,482 INFO L226 Difference]: Without dead ends: 3242 [2022-12-14 04:55:17,483 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 [2022-12-14 04:55:17,486 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:17,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:17,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3242 states. [2022-12-14 04:55:17,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3242 to 3242. [2022-12-14 04:55:17,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3242 states, 3237 states have (on average 3.909793018226753) internal successors, (12656), 3241 states have internal predecessors, (12656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3242 states to 3242 states and 12656 transitions. [2022-12-14 04:55:17,696 INFO L78 Accepts]: Start accepts. Automaton has 3242 states and 12656 transitions. Word has length 1 [2022-12-14 04:55:17,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:17,696 INFO L495 AbstractCegarLoop]: Abstraction has 3242 states and 12656 transitions. [2022-12-14 04:55:17,696 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) [2022-12-14 04:55:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3242 states and 12656 transitions. [2022-12-14 04:55:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 04:55:17,697 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:17,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:17,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:17,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:17,899 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:17,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:17,901 INFO L85 PathProgramCache]: Analyzing trace with hash 524276207, now seen corresponding path program 1 times [2022-12-14 04:55:17,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:55:17,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629477187] [2022-12-14 04:55:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:17,906 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 [2022-12-14 04:55:17,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:55:17,910 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:55:17,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:18,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 04:55:18,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:55:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:18,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:55:18,200 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:55:18,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629477187] [2022-12-14 04:55:18,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629477187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:18,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:18,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 04:55:18,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553404157] [2022-12-14 04:55:18,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:18,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:55:18,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:55:18,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:55:18,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:55:18,203 INFO L87 Difference]: Start difference. First operand 3242 states and 12656 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:18,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:18,331 INFO L93 Difference]: Finished difference Result 2682 states and 10328 transitions. [2022-12-14 04:55:18,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:55:18,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 04:55:18,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:18,354 INFO L225 Difference]: With dead ends: 2682 [2022-12-14 04:55:18,354 INFO L226 Difference]: Without dead ends: 2602 [2022-12-14 04:55:18,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:55:18,356 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:18,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:18,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2022-12-14 04:55:18,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2602. [2022-12-14 04:55:18,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2600 states have (on average 3.870769230769231) internal successors, (10064), 2601 states have internal predecessors, (10064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 10064 transitions. [2022-12-14 04:55:18,437 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 10064 transitions. Word has length 9 [2022-12-14 04:55:18,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:18,438 INFO L495 AbstractCegarLoop]: Abstraction has 2602 states and 10064 transitions. [2022-12-14 04:55:18,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:18,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 10064 transitions. [2022-12-14 04:55:18,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 04:55:18,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:18,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:18,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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)] Forceful destruction successful, exit code 0 [2022-12-14 04:55:18,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:18,641 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:18,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:18,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1318359078, now seen corresponding path program 1 times [2022-12-14 04:55:18,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:55:18,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677008956] [2022-12-14 04:55:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:18,642 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 [2022-12-14 04:55:18,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:55:18,643 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:55:18,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:18,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 04:55:18,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:55:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:18,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:55:18,793 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:55:18,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677008956] [2022-12-14 04:55:18,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677008956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:18,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:18,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:55:18,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533925606] [2022-12-14 04:55:18,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:18,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 04:55:18,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:55:18,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 04:55:18,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:55:18,796 INFO L87 Difference]: Start difference. First operand 2602 states and 10064 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2022-12-14 04:55:18,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:18,945 INFO L93 Difference]: Finished difference Result 2282 states and 7848 transitions. [2022-12-14 04:55:18,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 04:55:18,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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 [2022-12-14 04:55:18,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:18,964 INFO L225 Difference]: With dead ends: 2282 [2022-12-14 04:55:18,964 INFO L226 Difference]: Without dead ends: 1882 [2022-12-14 04:55:18,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:55:18,965 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 39 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:18,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 20 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:18,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2022-12-14 04:55:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1882. [2022-12-14 04:55:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1882 states, 1880 states have (on average 3.4382978723404256) internal successors, (6464), 1881 states have internal predecessors, (6464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:19,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 6464 transitions. [2022-12-14 04:55:19,029 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 6464 transitions. Word has length 11 [2022-12-14 04:55:19,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:19,030 INFO L495 AbstractCegarLoop]: Abstraction has 1882 states and 6464 transitions. [2022-12-14 04:55:19,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2022-12-14 04:55:19,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 6464 transitions. [2022-12-14 04:55:19,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 04:55:19,033 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:19,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:19,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 04:55:19,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:19,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:19,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:19,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1674862744, now seen corresponding path program 1 times [2022-12-14 04:55:19,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:55:19,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134575029] [2022-12-14 04:55:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:19,237 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 [2022-12-14 04:55:19,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:55:19,239 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:55:19,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:19,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 04:55:19,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:55:19,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:19,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:55:19,485 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:55:19,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134575029] [2022-12-14 04:55:19,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134575029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:19,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:19,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 04:55:19,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373416359] [2022-12-14 04:55:19,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:19,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:55:19,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:55:19,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:55:19,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:55:19,487 INFO L87 Difference]: Start difference. First operand 1882 states and 6464 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:19,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:19,680 INFO L93 Difference]: Finished difference Result 1298 states and 3936 transitions. [2022-12-14 04:55:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:55:19,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 04:55:19,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:19,687 INFO L225 Difference]: With dead ends: 1298 [2022-12-14 04:55:19,687 INFO L226 Difference]: Without dead ends: 1042 [2022-12-14 04:55:19,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:55:19,688 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 53 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:19,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 36 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 04:55:19,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2022-12-14 04:55:19,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2022-12-14 04:55:19,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 1040 states have (on average 2.9846153846153847) internal successors, (3104), 1041 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:19,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3104 transitions. [2022-12-14 04:55:19,727 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3104 transitions. Word has length 14 [2022-12-14 04:55:19,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:19,727 INFO L495 AbstractCegarLoop]: Abstraction has 1042 states and 3104 transitions. [2022-12-14 04:55:19,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:19,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3104 transitions. [2022-12-14 04:55:19,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 04:55:19,729 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:19,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:19,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 04:55:19,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:19,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:19,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:19,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1877140496, now seen corresponding path program 1 times [2022-12-14 04:55:19,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:55:19,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099381611] [2022-12-14 04:55:19,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:19,935 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 [2022-12-14 04:55:19,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:55:19,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:55:19,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:20,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 04:55:20,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:55:20,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:20,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:55:20,133 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:55:20,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099381611] [2022-12-14 04:55:20,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099381611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:20,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:20,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 04:55:20,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901092859] [2022-12-14 04:55:20,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:20,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 04:55:20,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:55:20,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 04:55:20,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:55:20,135 INFO L87 Difference]: Start difference. First operand 1042 states and 3104 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:20,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:20,329 INFO L93 Difference]: Finished difference Result 765 states and 2242 transitions. [2022-12-14 04:55:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 04:55:20,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-12-14 04:55:20,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:20,332 INFO L225 Difference]: With dead ends: 765 [2022-12-14 04:55:20,332 INFO L226 Difference]: Without dead ends: 677 [2022-12-14 04:55:20,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 04:55:20,333 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 65 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:20,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 64 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 04:55:20,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-12-14 04:55:20,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 677. [2022-12-14 04:55:20,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 675 states have (on average 2.9762962962962964) internal successors, (2009), 676 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:20,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 2009 transitions. [2022-12-14 04:55:20,350 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 2009 transitions. Word has length 17 [2022-12-14 04:55:20,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:20,351 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 2009 transitions. [2022-12-14 04:55:20,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:20,351 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 2009 transitions. [2022-12-14 04:55:20,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 04:55:20,353 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:20,353 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] [2022-12-14 04:55:20,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 04:55:20,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:20,554 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:20,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:20,554 INFO L85 PathProgramCache]: Analyzing trace with hash -456395712, now seen corresponding path program 1 times [2022-12-14 04:55:20,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:55:20,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120920878] [2022-12-14 04:55:20,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:20,555 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 [2022-12-14 04:55:20,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:55:20,556 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:55:20,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:20,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 04:55:20,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:55:20,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:20,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:55:20,680 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:55:20,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120920878] [2022-12-14 04:55:20,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120920878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:20,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:20,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 04:55:20,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684043299] [2022-12-14 04:55:20,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:20,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 04:55:20,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:55:20,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 04:55:20,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 04:55:20,682 INFO L87 Difference]: Start difference. First operand 677 states and 2009 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:21,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:21,005 INFO L93 Difference]: Finished difference Result 622 states and 1897 transitions. [2022-12-14 04:55:21,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 04:55:21,006 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-12-14 04:55:21,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:21,011 INFO L225 Difference]: With dead ends: 622 [2022-12-14 04:55:21,011 INFO L226 Difference]: Without dead ends: 607 [2022-12-14 04:55:21,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:55:21,012 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 60 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:21,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 96 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 04:55:21,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-12-14 04:55:21,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2022-12-14 04:55:21,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 605 states have (on average 3.0892561983471074) internal successors, (1869), 606 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:21,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 1869 transitions. [2022-12-14 04:55:21,022 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 1869 transitions. Word has length 21 [2022-12-14 04:55:21,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:21,022 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 1869 transitions. [2022-12-14 04:55:21,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:21,023 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 1869 transitions. [2022-12-14 04:55:21,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 04:55:21,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:21,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:21,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 04:55:21,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:21,225 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:21,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:21,226 INFO L85 PathProgramCache]: Analyzing trace with hash 89063072, now seen corresponding path program 1 times [2022-12-14 04:55:21,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:55:21,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521799366] [2022-12-14 04:55:21,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:21,228 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 [2022-12-14 04:55:21,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:55:21,230 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:55:21,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:21,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 04:55:21,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:55:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:21,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:55:21,356 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:55:21,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521799366] [2022-12-14 04:55:21,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521799366] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:21,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:21,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:55:21,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297111821] [2022-12-14 04:55:21,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:21,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 04:55:21,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:55:21,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 04:55:21,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:55:21,357 INFO L87 Difference]: Start difference. First operand 607 states and 1869 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:21,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:21,477 INFO L93 Difference]: Finished difference Result 835 states and 2513 transitions. [2022-12-14 04:55:21,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 04:55:21,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-12-14 04:55:21,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:21,482 INFO L225 Difference]: With dead ends: 835 [2022-12-14 04:55:21,483 INFO L226 Difference]: Without dead ends: 835 [2022-12-14 04:55:21,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:55:21,483 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 28 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 16 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 [2022-12-14 04:55:21,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 16 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:21,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2022-12-14 04:55:21,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 833. [2022-12-14 04:55:21,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 831 states have (on average 3.022864019253911) internal successors, (2512), 832 states have internal predecessors, (2512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:21,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 2512 transitions. [2022-12-14 04:55:21,504 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 2512 transitions. Word has length 25 [2022-12-14 04:55:21,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:21,505 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 2512 transitions. [2022-12-14 04:55:21,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:21,505 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 2512 transitions. [2022-12-14 04:55:21,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 04:55:21,507 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:21,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:21,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 04:55:21,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:21,708 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:21,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:21,708 INFO L85 PathProgramCache]: Analyzing trace with hash -2051929856, now seen corresponding path program 2 times [2022-12-14 04:55:21,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:55:21,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138518212] [2022-12-14 04:55:21,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 04:55:21,709 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 [2022-12-14 04:55:21,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:55:21,710 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:55:21,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:21,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 04:55:21,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 04:55:21,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 04:55:21,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:55:21,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:21,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:55:21,833 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:55:21,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138518212] [2022-12-14 04:55:21,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138518212] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:21,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:21,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:55:21,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069363354] [2022-12-14 04:55:21,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:21,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 04:55:21,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:55:21,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 04:55:21,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:55:21,835 INFO L87 Difference]: Start difference. First operand 833 states and 2512 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:21,973 INFO L93 Difference]: Finished difference Result 1091 states and 3224 transitions. [2022-12-14 04:55:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 04:55:21,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-12-14 04:55:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:21,979 INFO L225 Difference]: With dead ends: 1091 [2022-12-14 04:55:21,979 INFO L226 Difference]: Without dead ends: 1091 [2022-12-14 04:55:21,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:55:21,979 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 26 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:21,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 16 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:21,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2022-12-14 04:55:21,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 773. [2022-12-14 04:55:21,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 771 states have (on average 3.0389105058365757) internal successors, (2343), 772 states have internal predecessors, (2343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:21,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 2343 transitions. [2022-12-14 04:55:21,992 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 2343 transitions. Word has length 25 [2022-12-14 04:55:21,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:21,992 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 2343 transitions. [2022-12-14 04:55:21,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:21,992 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 2343 transitions. [2022-12-14 04:55:21,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 04:55:21,994 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:21,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:22,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 04:55:22,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:22,196 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:22,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:22,197 INFO L85 PathProgramCache]: Analyzing trace with hash -431952230, now seen corresponding path program 3 times [2022-12-14 04:55:22,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:55:22,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502832749] [2022-12-14 04:55:22,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 04:55:22,199 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 [2022-12-14 04:55:22,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:55:22,202 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:55:22,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:22,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 04:55:22,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 04:55:22,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 04:55:22,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:55:22,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:22,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:55:22,299 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:55:22,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502832749] [2022-12-14 04:55:22,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502832749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:22,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:22,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 04:55:22,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160514179] [2022-12-14 04:55:22,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:22,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:55:22,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:55:22,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:55:22,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:55:22,300 INFO L87 Difference]: Start difference. First operand 773 states and 2343 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:22,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:22,376 INFO L93 Difference]: Finished difference Result 1067 states and 3136 transitions. [2022-12-14 04:55:22,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:55:22,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-12-14 04:55:22,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:22,381 INFO L225 Difference]: With dead ends: 1067 [2022-12-14 04:55:22,381 INFO L226 Difference]: Without dead ends: 1067 [2022-12-14 04:55:22,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:55:22,382 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:22,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 10 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:22,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-12-14 04:55:22,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 684. [2022-12-14 04:55:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 682 states have (on average 3.033724340175953) internal successors, (2069), 683 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 2069 transitions. [2022-12-14 04:55:22,396 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 2069 transitions. Word has length 25 [2022-12-14 04:55:22,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:22,396 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 2069 transitions. [2022-12-14 04:55:22,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:22,397 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 2069 transitions. [2022-12-14 04:55:22,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 04:55:22,398 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:22,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:22,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 04:55:22,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:22,600 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:22,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:22,601 INFO L85 PathProgramCache]: Analyzing trace with hash -2109385168, now seen corresponding path program 4 times [2022-12-14 04:55:22,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:55:22,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559773008] [2022-12-14 04:55:22,603 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 04:55:22,603 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 [2022-12-14 04:55:22,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:55:22,606 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:55:22,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:22,768 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 04:55:22,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 04:55:22,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 04:55:22,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:55:22,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:22,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:55:22,956 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:55:22,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559773008] [2022-12-14 04:55:22,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559773008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:55:22,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:55:22,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 04:55:22,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907474361] [2022-12-14 04:55:22,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:55:22,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 04:55:22,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:55:22,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 04:55:22,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:55:22,958 INFO L87 Difference]: Start difference. First operand 684 states and 2069 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:23,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:55:23,113 INFO L93 Difference]: Finished difference Result 810 states and 2384 transitions. [2022-12-14 04:55:23,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 04:55:23,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-12-14 04:55:23,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:55:23,117 INFO L225 Difference]: With dead ends: 810 [2022-12-14 04:55:23,117 INFO L226 Difference]: Without dead ends: 810 [2022-12-14 04:55:23,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:55:23,118 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 49 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:55:23,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 30 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:55:23,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2022-12-14 04:55:23,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 658. [2022-12-14 04:55:23,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 656 states have (on average 3.0457317073170733) internal successors, (1998), 657 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:23,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1998 transitions. [2022-12-14 04:55:23,135 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1998 transitions. Word has length 25 [2022-12-14 04:55:23,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:55:23,135 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 1998 transitions. [2022-12-14 04:55:23,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:55:23,136 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1998 transitions. [2022-12-14 04:55:23,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 04:55:23,138 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:55:23,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:23,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:23,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:23,339 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-14 04:55:23,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:55:23,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1001607068, now seen corresponding path program 5 times [2022-12-14 04:55:23,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:55:23,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705136252] [2022-12-14 04:55:23,340 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-14 04:55:23,341 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 [2022-12-14 04:55:23,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:55:23,342 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:55:23,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:23,508 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 04:55:23,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-14 04:55:23,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 04:55:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:55:23,623 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 04:55:23,623 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 04:55:23,624 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-14 04:55:23,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-14 04:55:23,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-14 04:55:23,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-14 04:55:23,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-14 04:55:23,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-14 04:55:23,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-14 04:55:23,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-14 04:55:23,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-14 04:55:23,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-14 04:55:23,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-14 04:55:23,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-14 04:55:23,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-14 04:55:23,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-14 04:55:23,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-14 04:55:23,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-14 04:55:23,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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)] Forceful destruction successful, exit code 0 [2022-12-14 04:55:23,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:55:23,835 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1] [2022-12-14 04:55:23,850 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 04:55:23,851 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 04:55:23,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:55:23 BasicIcfg [2022-12-14 04:55:23,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 04:55:23,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 04:55:23,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 04:55:23,933 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 04:55:23,934 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:55:09" (3/4) ... [2022-12-14 04:55:23,936 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 04:55:23,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 04:55:23,936 INFO L158 Benchmark]: Toolchain (without parser) took 15452.10ms. Allocated memory was 60.8MB in the beginning and 230.7MB in the end (delta: 169.9MB). Free memory was 28.2MB in the beginning and 103.4MB in the end (delta: -75.2MB). Peak memory consumption was 93.8MB. Max. memory is 16.1GB. [2022-12-14 04:55:23,937 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:55:23,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.40ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 28.0MB in the beginning and 54.6MB in the end (delta: -26.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 04:55:23,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.84ms. Allocated memory is still 79.7MB. Free memory was 54.2MB in the beginning and 51.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:55:23,937 INFO L158 Benchmark]: Boogie Preprocessor took 31.24ms. Allocated memory is still 79.7MB. Free memory was 51.7MB in the beginning and 49.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:55:23,938 INFO L158 Benchmark]: RCFGBuilder took 570.88ms. Allocated memory is still 79.7MB. Free memory was 49.3MB in the beginning and 52.6MB in the end (delta: -3.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-12-14 04:55:23,938 INFO L158 Benchmark]: TraceAbstraction took 14301.42ms. Allocated memory was 79.7MB in the beginning and 230.7MB in the end (delta: 151.0MB). Free memory was 51.7MB in the beginning and 104.4MB in the end (delta: -52.7MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. [2022-12-14 04:55:23,938 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 230.7MB. Free memory was 104.4MB in the beginning and 103.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:55:23,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.40ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 28.0MB in the beginning and 54.6MB in the end (delta: -26.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.84ms. Allocated memory is still 79.7MB. Free memory was 54.2MB in the beginning and 51.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.24ms. Allocated memory is still 79.7MB. Free memory was 51.7MB in the beginning and 49.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.88ms. Allocated memory is still 79.7MB. Free memory was 49.3MB in the beginning and 52.6MB in the end (delta: -3.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * TraceAbstraction took 14301.42ms. Allocated memory was 79.7MB in the beginning and 230.7MB in the end (delta: 151.0MB). Free memory was 51.7MB in the beginning and 104.4MB in the end (delta: -52.7MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 230.7MB. Free memory was 104.4MB in the beginning and 103.4MB 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: 7.2s, 157 PlacesBefore, 54 PlacesAfterwards, 146 TransitionsBefore, 42 TransitionsAfterwards, 3262 CoEnabledTransitionPairs, 7 FixpointIterations, 50 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 133 TotalNumberOfCompositions, 8180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4725, independent: 4530, independent conditional: 0, independent unconditional: 4530, dependent: 195, dependent conditional: 0, dependent unconditional: 195, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2425, independent: 2361, independent conditional: 0, independent unconditional: 2361, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2425, independent: 2327, independent conditional: 0, independent unconditional: 2327, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 98, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 282, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4725, independent: 2169, independent conditional: 0, independent unconditional: 2169, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 2425, unknown conditional: 0, unknown unconditional: 2425] , Statistics on independence cache: Total cache size (in pairs): 328, Positive cache size: 298, Positive conditional cache size: 0, Positive unconditional cache size: 298, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, 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: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int a = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L722] 0 int y = 0; [L724] 0 int z = 0; [L725] 0 _Bool z$flush_delayed; [L726] 0 int z$mem_tmp; [L727] 0 _Bool z$r_buff0_thd0; [L728] 0 _Bool z$r_buff0_thd1; [L729] 0 _Bool z$r_buff0_thd2; [L730] 0 _Bool z$r_buff0_thd3; [L731] 0 _Bool z$r_buff0_thd4; [L732] 0 _Bool z$r_buff1_thd0; [L733] 0 _Bool z$r_buff1_thd1; [L734] 0 _Bool z$r_buff1_thd2; [L735] 0 _Bool z$r_buff1_thd3; [L736] 0 _Bool z$r_buff1_thd4; [L737] 0 _Bool z$read_delayed; [L738] 0 int *z$read_delayed_var; [L739] 0 int z$w_buff0; [L740] 0 _Bool z$w_buff0_used; [L741] 0 int z$w_buff1; [L742] 0 _Bool z$w_buff1_used; [L743] 0 _Bool weak$$choice0; [L744] 0 _Bool weak$$choice2; [L836] 0 pthread_t t1461; [L837] FCALL, FORK 0 pthread_create(&t1461, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1461, ((void *)0), P0, ((void *)0))=0, t1461={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t1462; [L839] FCALL, FORK 0 pthread_create(&t1462, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1462, ((void *)0), P1, ((void *)0))=1, t1461={11:0}, t1462={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t1463; [L841] FCALL, FORK 0 pthread_create(&t1463, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1463, ((void *)0), P2, ((void *)0))=2, t1461={11:0}, t1462={15:0}, t1463={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L842] 0 pthread_t t1464; [L843] FCALL, FORK 0 pthread_create(&t1464, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1464, ((void *)0), P3, ((void *)0))=3, t1461={11:0}, t1462={15:0}, t1463={7:0}, t1464={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L798] 4 z$w_buff1 = z$w_buff0 [L799] 4 z$w_buff0 = 2 [L800] 4 z$w_buff1_used = z$w_buff0_used [L801] 4 z$w_buff0_used = (_Bool)1 [L802] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L802] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L803] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L804] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L805] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L806] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L807] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L808] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L811] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L748] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L763] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L766] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L771] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L773] 2 return 0; [L778] 3 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L781] 3 z = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L814] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L815] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L816] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L817] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L818] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L784] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L785] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L786] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L787] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L788] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L791] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L793] 3 return 0; [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L821] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L823] 4 return 0; [L845] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L847] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L847] RET 0 assume_abort_if_not(main$tmp_guard0) [L849] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L850] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L851] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L852] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L853] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1461={11:0}, t1462={15:0}, t1463={7:0}, t1464={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L856] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L857] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L858] 0 z$flush_delayed = weak$$choice2 [L859] 0 z$mem_tmp = z [L860] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L861] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L862] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L863] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L864] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L866] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L867] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 0) [L868] 0 z = z$flush_delayed ? z$mem_tmp : z [L869] 0 z$flush_delayed = (_Bool)0 [L871] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: 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: 834]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 843]: 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: 837]: 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: 839]: 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: 841]: 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, 180 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 14.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 349 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 349 mSDsluCounter, 300 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 202 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1371 IncrementalHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 98 mSDtfsCounter, 1371 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3444occurred in iteration=0, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 855 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 646 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1486 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 [2022-12-14 04:55:23,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca7ccc9-fb19-475b-8d70-56d38003ebcf/bin/utaipan-gh47qXpMRh/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