./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-queue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-queue-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c858394bc83ab2c402eb20052f936c0a6aa98b2b6b6c704be79c039778bcff97 --- 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-dbf71c6-m [2022-10-17 16:49:09,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:49:09,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:49:09,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:49:09,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:49:09,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:49:09,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:49:09,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:49:09,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:49:09,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:49:09,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:49:09,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:49:09,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:49:09,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:49:09,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:49:09,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:49:09,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:49:09,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:49:09,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:49:09,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:49:09,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:49:09,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:49:09,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:49:09,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:49:09,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:49:09,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:49:09,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:49:09,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:49:09,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:49:09,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:49:09,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:49:09,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:49:09,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:49:09,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:49:09,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:49:09,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:49:09,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:49:09,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:49:09,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:49:09,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:49:09,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:49:09,792 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-10-17 16:49:09,823 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:49:09,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:49:09,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:49:09,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:49:09,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:49:09,833 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:49:09,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:49:09,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:49:09,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:49:09,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:49:09,835 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:49:09,835 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:49:09,835 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 16:49:09,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:49:09,836 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:49:09,836 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:49:09,836 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:49:09,836 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:49:09,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:49:09,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:49:09,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:49:09,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:49:09,838 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:49:09,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:49:09,838 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_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c858394bc83ab2c402eb20052f936c0a6aa98b2b6b6c704be79c039778bcff97 [2022-10-17 16:49:10,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:49:10,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:49:10,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:49:10,198 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:49:10,199 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:49:10,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/forester-heap/dll-queue-1.i [2022-10-17 16:49:10,281 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/data/18c6388e8/31f9420104124fdca78b840554389144/FLAG82311b731 [2022-10-17 16:49:10,872 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:49:10,872 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i [2022-10-17 16:49:10,891 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/data/18c6388e8/31f9420104124fdca78b840554389144/FLAG82311b731 [2022-10-17 16:49:11,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/data/18c6388e8/31f9420104124fdca78b840554389144 [2022-10-17 16:49:11,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:49:11,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:49:11,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:49:11,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:49:11,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:49:11,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa8e024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11, skipping insertion in model container [2022-10-17 16:49:11,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:49:11,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:49:11,694 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22460,22473] [2022-10-17 16:49:11,698 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22531,22544] [2022-10-17 16:49:11,700 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22605,22618] [2022-10-17 16:49:11,702 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22697,22710] [2022-10-17 16:49:11,704 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22774,22787] [2022-10-17 16:49:11,705 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22869,22882] [2022-10-17 16:49:11,708 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22946,22959] [2022-10-17 16:49:11,709 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23029,23042] [2022-10-17 16:49:11,713 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23124,23137] [2022-10-17 16:49:11,715 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23201,23214] [2022-10-17 16:49:11,716 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23284,23297] [2022-10-17 16:49:11,718 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23373,23386] [2022-10-17 16:49:11,719 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23459,23472] [2022-10-17 16:49:11,724 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23604,23617] [2022-10-17 16:49:11,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:49:11,746 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:49:11,805 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22460,22473] [2022-10-17 16:49:11,810 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22531,22544] [2022-10-17 16:49:11,811 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22605,22618] [2022-10-17 16:49:11,812 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22697,22710] [2022-10-17 16:49:11,816 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22774,22787] [2022-10-17 16:49:11,818 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22869,22882] [2022-10-17 16:49:11,819 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[22946,22959] [2022-10-17 16:49:11,820 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23029,23042] [2022-10-17 16:49:11,822 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23124,23137] [2022-10-17 16:49:11,824 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23201,23214] [2022-10-17 16:49:11,825 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23284,23297] [2022-10-17 16:49:11,826 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23373,23386] [2022-10-17 16:49:11,831 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23459,23472] [2022-10-17 16:49:11,834 WARN L230 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_a20a93af-894d-40b4-a06f-ece53baacd64/sv-benchmarks/c/forester-heap/dll-queue-1.i[23604,23617] [2022-10-17 16:49:11,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:49:11,877 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:49:11,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11 WrapperNode [2022-10-17 16:49:11,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:49:11,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:49:11,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:49:11,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:49:11,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,933 INFO L138 Inliner]: procedures = 119, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 226 [2022-10-17 16:49:11,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:49:11,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:49:11,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:49:11,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:49:11,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,969 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:49:11,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:49:11,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:49:11,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:49:11,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:49:11" (1/1) ... [2022-10-17 16:49:11,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:49:12,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:49:12,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:49:12,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a93af-894d-40b4-a06f-ece53baacd64/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:49:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:49:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:49:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:49:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:49:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 16:49:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 16:49:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:49:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:49:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:49:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:49:12,199 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:49:12,201 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:49:12,893 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:49:12,946 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:49:12,946 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-10-17 16:49:12,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:49:12 BoogieIcfgContainer [2022-10-17 16:49:12,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:49:12,951 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:49:12,951 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:49:12,963 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:49:12,963 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:49:12" (1/1) ... [2022-10-17 16:49:12,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:49:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:13,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 166 states and 219 transitions. [2022-10-17 16:49:13,041 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 219 transitions. [2022-10-17 16:49:13,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-10-17 16:49:13,044 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:13,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:13,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:13,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 165 states and 218 transitions. [2022-10-17 16:49:13,346 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 218 transitions. [2022-10-17 16:49:13,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-10-17 16:49:13,346 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:13,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:13,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:13,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 164 states and 217 transitions. [2022-10-17 16:49:13,580 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 217 transitions. [2022-10-17 16:49:13,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:49:13,581 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:13,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:13,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:13,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 163 states and 216 transitions. [2022-10-17 16:49:13,652 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 216 transitions. [2022-10-17 16:49:13,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:49:13,653 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:13,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:13,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 162 states and 215 transitions. [2022-10-17 16:49:13,911 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 215 transitions. [2022-10-17 16:49:13,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:49:13,911 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:13,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:13,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:13,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:13,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 161 states and 214 transitions. [2022-10-17 16:49:13,991 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 214 transitions. [2022-10-17 16:49:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:49:13,991 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:13,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:14,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:14,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:14,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 160 states and 213 transitions. [2022-10-17 16:49:14,172 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 213 transitions. [2022-10-17 16:49:14,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:49:14,173 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:14,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:14,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 163 states and 217 transitions. [2022-10-17 16:49:14,404 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 217 transitions. [2022-10-17 16:49:14,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:49:14,405 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:14,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:14,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:14,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 166 states and 223 transitions. [2022-10-17 16:49:14,787 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 223 transitions. [2022-10-17 16:49:14,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:49:14,788 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:14,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:14,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:15,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:15,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 169 states and 227 transitions. [2022-10-17 16:49:15,085 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 227 transitions. [2022-10-17 16:49:15,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:49:15,087 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:15,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:15,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:15,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:15,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 168 states and 226 transitions. [2022-10-17 16:49:15,166 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 226 transitions. [2022-10-17 16:49:15,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:49:15,166 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:15,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:15,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:15,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 169 states and 228 transitions. [2022-10-17 16:49:15,513 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 228 transitions. [2022-10-17 16:49:15,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:49:15,513 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:15,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:15,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:16,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 171 states and 233 transitions. [2022-10-17 16:49:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 233 transitions. [2022-10-17 16:49:16,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:49:16,377 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:16,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:16,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 173 states and 236 transitions. [2022-10-17 16:49:17,389 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 236 transitions. [2022-10-17 16:49:17,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:49:17,392 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:17,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:17,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:17,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 174 states and 238 transitions. [2022-10-17 16:49:17,640 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 238 transitions. [2022-10-17 16:49:17,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:49:17,640 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:17,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:17,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:17,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 176 states and 241 transitions. [2022-10-17 16:49:17,960 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 241 transitions. [2022-10-17 16:49:17,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:49:17,961 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:17,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:18,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:18,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 181 states and 248 transitions. [2022-10-17 16:49:18,520 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 248 transitions. [2022-10-17 16:49:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:49:18,521 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:18,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:20,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:20,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 186 states and 256 transitions. [2022-10-17 16:49:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 256 transitions. [2022-10-17 16:49:20,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:49:20,295 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:20,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:20,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:21,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:22,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 188 states and 261 transitions. [2022-10-17 16:49:22,000 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 261 transitions. [2022-10-17 16:49:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:49:22,001 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:22,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:22,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:22,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:22,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 196 states and 277 transitions. [2022-10-17 16:49:22,781 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 277 transitions. [2022-10-17 16:49:22,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:49:22,782 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:22,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:22,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:24,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:24,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 204 states and 295 transitions. [2022-10-17 16:49:24,215 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 295 transitions. [2022-10-17 16:49:24,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:49:24,216 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:24,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:24,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 204 states and 291 transitions. [2022-10-17 16:49:24,240 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 291 transitions. [2022-10-17 16:49:24,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:49:24,240 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:24,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:24,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:24,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 205 states and 292 transitions. [2022-10-17 16:49:24,454 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 292 transitions. [2022-10-17 16:49:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:49:24,455 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:24,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:24,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:24,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 206 states and 291 transitions. [2022-10-17 16:49:24,491 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 291 transitions. [2022-10-17 16:49:24,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:49:24,492 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:24,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:24,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:24,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 205 states and 290 transitions. [2022-10-17 16:49:24,537 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 290 transitions. [2022-10-17 16:49:24,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:49:24,539 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:24,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:25,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:25,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 207 states and 294 transitions. [2022-10-17 16:49:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 294 transitions. [2022-10-17 16:49:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:49:25,604 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:25,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:27,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 213 states and 305 transitions. [2022-10-17 16:49:27,738 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 305 transitions. [2022-10-17 16:49:27,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:49:27,738 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:27,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:27,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:27,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:27,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 213 states and 304 transitions. [2022-10-17 16:49:27,773 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 304 transitions. [2022-10-17 16:49:27,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:49:27,773 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:27,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:27,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:29,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:29,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 221 states and 318 transitions. [2022-10-17 16:49:29,775 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 318 transitions. [2022-10-17 16:49:29,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:49:29,775 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:29,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:29,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:29,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 225 states and 326 transitions. [2022-10-17 16:49:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 326 transitions. [2022-10-17 16:49:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:49:29,839 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:29,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:29,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:29,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:29,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 229 states and 334 transitions. [2022-10-17 16:49:29,930 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 334 transitions. [2022-10-17 16:49:29,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:49:29,931 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:29,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:30,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:30,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 235 states and 346 transitions. [2022-10-17 16:49:30,503 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 346 transitions. [2022-10-17 16:49:30,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:49:30,503 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:30,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:33,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:33,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 245 states and 363 transitions. [2022-10-17 16:49:33,699 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 363 transitions. [2022-10-17 16:49:33,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 16:49:33,700 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:33,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:33,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:34,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 246 states and 364 transitions. [2022-10-17 16:49:34,100 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 364 transitions. [2022-10-17 16:49:34,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 16:49:34,101 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:34,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:34,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:49:39,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:49:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 258 states and 389 transitions. [2022-10-17 16:49:39,958 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 389 transitions. [2022-10-17 16:49:39,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 16:49:39,959 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:49:39,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:49:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:49:40,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.