./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fd4ba35c5d37d2cde98be67677183fa679789fb5 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:20:07,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:20:07,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:20:07,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:20:07,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:20:07,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:20:07,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:20:07,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:20:07,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:20:07,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:20:07,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:20:07,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:20:07,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:20:07,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:20:07,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:20:07,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:20:07,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:20:07,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:20:07,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:20:07,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:20:07,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:20:07,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:20:07,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:20:07,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:20:07,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:20:07,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:20:07,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:20:07,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:20:07,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:20:07,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:20:07,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:20:07,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:20:07,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:20:07,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:20:07,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:20:07,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:20:07,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:20:07,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:20:07,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:20:07,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:20:07,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:20:07,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-11-29 18:20:07,874 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:20:07,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:20:07,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:20:07,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:20:07,876 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:20:07,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:20:07,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:20:07,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:20:07,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:20:07,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:20:07,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:20:07,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:20:07,878 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:20:07,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:20:07,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:20:07,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:20:07,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:20:07,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:20:07,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:20:07,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:20:07,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:20:07,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:20:07,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:20:07,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:20:07,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:20:07,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:20:07,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 18:20:07,883 INFO L138 SettingsManager]: * To the following directory=dump/ 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-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4ba35c5d37d2cde98be67677183fa679789fb5 [2020-11-29 18:20:08,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:20:08,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:20:08,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:20:08,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:20:08,175 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:20:08,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i [2020-11-29 18:20:08,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/data/f4bb26b3b/edbc384cf4bf4cd7a3c464842c5b83bb/FLAG395f215bb [2020-11-29 18:20:09,127 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:20:09,128 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness.i [2020-11-29 18:20:09,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/data/f4bb26b3b/edbc384cf4bf4cd7a3c464842c5b83bb/FLAG395f215bb [2020-11-29 18:20:09,592 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/data/f4bb26b3b/edbc384cf4bf4cd7a3c464842c5b83bb [2020-11-29 18:20:09,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:20:09,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:20:09,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:20:09,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:20:09,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:20:09,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:20:09" (1/1) ... [2020-11-29 18:20:09,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16eecca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:09, skipping insertion in model container [2020-11-29 18:20:09,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:20:09" (1/1) ... [2020-11-29 18:20:09,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:20:09,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:20:10,168 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-11-29 18:20:10,178 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-11-29 18:20:11,313 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,314 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,315 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,316 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,317 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,333 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,333 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,335 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,336 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,338 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,340 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,340 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,341 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:11,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-11-29 18:20:11,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-11-29 18:20:11,873 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-11-29 18:20:11,875 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-11-29 18:20:11,876 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-11-29 18:20:11,877 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-11-29 18:20:11,878 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-11-29 18:20:11,878 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-11-29 18:20:11,879 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-11-29 18:20:11,880 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-11-29 18:20:12,117 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-11-29 18:20:12,479 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,480 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,501 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,502 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,508 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,510 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,540 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,541 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,542 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,543 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,543 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,544 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,546 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:20:12,661 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:20:12,691 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-11-29 18:20:12,692 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-11-29 18:20:12,743 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,744 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,744 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,744 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,745 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,755 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,756 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,756 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,757 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,758 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,758 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,759 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,759 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-11-29 18:20:12,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-11-29 18:20:12,799 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-11-29 18:20:12,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-11-29 18:20:12,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-11-29 18:20:12,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-11-29 18:20:12,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-11-29 18:20:12,802 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-11-29 18:20:12,802 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-11-29 18:20:12,803 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-11-29 18:20:12,834 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-11-29 18:20:12,984 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,985 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,994 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,995 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,999 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:12,999 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:13,013 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:13,014 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:13,014 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:13,015 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:13,015 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:13,015 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:13,016 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-29 18:20:13,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:20:13,932 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:20:13,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13 WrapperNode [2020-11-29 18:20:13,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:20:13,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:20:13,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:20:13,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:20:13,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13" (1/1) ... [2020-11-29 18:20:14,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13" (1/1) ... [2020-11-29 18:20:14,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:20:14,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:20:14,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:20:14,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:20:14,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13" (1/1) ... [2020-11-29 18:20:14,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13" (1/1) ... [2020-11-29 18:20:14,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13" (1/1) ... [2020-11-29 18:20:14,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13" (1/1) ... [2020-11-29 18:20:14,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13" (1/1) ... [2020-11-29 18:20:14,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13" (1/1) ... [2020-11-29 18:20:14,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13" (1/1) ... [2020-11-29 18:20:14,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:20:14,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:20:14,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:20:14,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:20:14,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:20:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 18:20:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:20:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 18:20:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 18:20:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:20:14,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:20:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2020-11-29 18:20:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:20:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2020-11-29 18:20:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 18:20:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 18:20:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:20:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 18:20:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 18:20:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:20:23,874 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !true; [2020-11-29 18:20:23,881 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:20:23,881 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-11-29 18:20:23,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:23 BoogieIcfgContainer [2020-11-29 18:20:23,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:20:23,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:20:23,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:20:23,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:20:23,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:20:09" (1/3) ... [2020-11-29 18:20:23,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3722369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:20:23, skipping insertion in model container [2020-11-29 18:20:23,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:13" (2/3) ... [2020-11-29 18:20:23,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3722369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:20:23, skipping insertion in model container [2020-11-29 18:20:23,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:23" (3/3) ... [2020-11-29 18:20:23,899 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_init_unbounded_harness.i [2020-11-29 18:20:23,912 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:20:23,916 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 18:20:23,929 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 18:20:23,969 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:20:23,969 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:20:23,969 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:20:23,969 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:20:23,970 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:20:23,970 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:20:23,970 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:20:23,970 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:20:23,991 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-11-29 18:20:23,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 18:20:23,998 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:23,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:24,000 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:24,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:24,006 INFO L82 PathProgramCache]: Analyzing trace with hash -633636876, now seen corresponding path program 1 times [2020-11-29 18:20:24,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:24,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546010812] [2020-11-29 18:20:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:24,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546010812] [2020-11-29 18:20:24,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:24,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:20:24,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965062808] [2020-11-29 18:20:24,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:20:24,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:24,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:20:24,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:20:24,781 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 2 states. [2020-11-29 18:20:24,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:24,829 INFO L93 Difference]: Finished difference Result 223 states and 296 transitions. [2020-11-29 18:20:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:20:24,831 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2020-11-29 18:20:24,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:24,841 INFO L225 Difference]: With dead ends: 223 [2020-11-29 18:20:24,841 INFO L226 Difference]: Without dead ends: 106 [2020-11-29 18:20:24,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:20:24,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-11-29 18:20:24,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-11-29 18:20:24,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-29 18:20:24,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 129 transitions. [2020-11-29 18:20:24,899 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 129 transitions. Word has length 31 [2020-11-29 18:20:24,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:24,900 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 129 transitions. [2020-11-29 18:20:24,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:20:24,900 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 129 transitions. [2020-11-29 18:20:24,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 18:20:24,903 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:24,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:24,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:20:24,904 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:24,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:24,906 INFO L82 PathProgramCache]: Analyzing trace with hash 424905386, now seen corresponding path program 1 times [2020-11-29 18:20:24,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:24,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994782514] [2020-11-29 18:20:24,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:25,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:25,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994782514] [2020-11-29 18:20:25,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:25,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:20:25,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926753646] [2020-11-29 18:20:25,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:20:25,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:25,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:20:25,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:20:25,252 INFO L87 Difference]: Start difference. First operand 106 states and 129 transitions. Second operand 4 states. [2020-11-29 18:20:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:25,487 INFO L93 Difference]: Finished difference Result 272 states and 333 transitions. [2020-11-29 18:20:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:20:25,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-29 18:20:25,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:25,494 INFO L225 Difference]: With dead ends: 272 [2020-11-29 18:20:25,496 INFO L226 Difference]: Without dead ends: 191 [2020-11-29 18:20:25,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:20:25,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-11-29 18:20:25,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 108. [2020-11-29 18:20:25,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-29 18:20:25,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 131 transitions. [2020-11-29 18:20:25,518 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 131 transitions. Word has length 31 [2020-11-29 18:20:25,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:25,518 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 131 transitions. [2020-11-29 18:20:25,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:20:25,519 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 131 transitions. [2020-11-29 18:20:25,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 18:20:25,520 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:25,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:25,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:20:25,521 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:25,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:25,522 INFO L82 PathProgramCache]: Analyzing trace with hash 2127855684, now seen corresponding path program 1 times [2020-11-29 18:20:25,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:25,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045273942] [2020-11-29 18:20:25,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:25,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045273942] [2020-11-29 18:20:25,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:25,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:20:25,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783630353] [2020-11-29 18:20:25,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:20:25,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:25,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:20:25,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:20:25,880 INFO L87 Difference]: Start difference. First operand 108 states and 131 transitions. Second operand 4 states. [2020-11-29 18:20:26,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:26,058 INFO L93 Difference]: Finished difference Result 202 states and 245 transitions. [2020-11-29 18:20:26,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:20:26,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-11-29 18:20:26,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:26,064 INFO L225 Difference]: With dead ends: 202 [2020-11-29 18:20:26,065 INFO L226 Difference]: Without dead ends: 189 [2020-11-29 18:20:26,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:20:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-11-29 18:20:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 110. [2020-11-29 18:20:26,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-11-29 18:20:26,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2020-11-29 18:20:26,084 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 33 [2020-11-29 18:20:26,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:26,084 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2020-11-29 18:20:26,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:20:26,085 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2020-11-29 18:20:26,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-29 18:20:26,090 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:26,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:26,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 18:20:26,090 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:26,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1117880677, now seen corresponding path program 1 times [2020-11-29 18:20:26,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:26,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345404983] [2020-11-29 18:20:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:26,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:26,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345404983] [2020-11-29 18:20:26,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:26,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:20:26,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637812561] [2020-11-29 18:20:26,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:20:26,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:26,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:20:26,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:20:26,403 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand 4 states. [2020-11-29 18:20:26,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:26,440 INFO L93 Difference]: Finished difference Result 123 states and 148 transitions. [2020-11-29 18:20:26,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:20:26,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-11-29 18:20:26,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:26,444 INFO L225 Difference]: With dead ends: 123 [2020-11-29 18:20:26,444 INFO L226 Difference]: Without dead ends: 110 [2020-11-29 18:20:26,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:20:26,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-29 18:20:26,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2020-11-29 18:20:26,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-29 18:20:26,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2020-11-29 18:20:26,461 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 34 [2020-11-29 18:20:26,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:26,464 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2020-11-29 18:20:26,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:20:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2020-11-29 18:20:26,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-29 18:20:26,469 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:26,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:26,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 18:20:26,470 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:26,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:26,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1643067430, now seen corresponding path program 1 times [2020-11-29 18:20:26,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:26,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137823431] [2020-11-29 18:20:26,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:26,580 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:20:26,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202233935] [2020-11-29 18:20:26,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:27,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 2453 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 18:20:27,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:27,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:27,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137823431] [2020-11-29 18:20:27,979 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:20:27,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202233935] [2020-11-29 18:20:27,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:27,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:20:27,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186576980] [2020-11-29 18:20:27,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:20:27,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:27,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:20:27,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:20:27,981 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand 4 states. [2020-11-29 18:20:28,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:28,253 INFO L93 Difference]: Finished difference Result 136 states and 162 transitions. [2020-11-29 18:20:28,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:20:28,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-11-29 18:20:28,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:28,256 INFO L225 Difference]: With dead ends: 136 [2020-11-29 18:20:28,256 INFO L226 Difference]: Without dead ends: 108 [2020-11-29 18:20:28,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:20:28,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-29 18:20:28,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-29 18:20:28,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-29 18:20:28,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 127 transitions. [2020-11-29 18:20:28,274 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 127 transitions. Word has length 41 [2020-11-29 18:20:28,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:28,275 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 127 transitions. [2020-11-29 18:20:28,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:20:28,275 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 127 transitions. [2020-11-29 18:20:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 18:20:28,282 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:28,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:28,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:28,484 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:28,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:28,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1803411465, now seen corresponding path program 1 times [2020-11-29 18:20:28,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:28,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565138202] [2020-11-29 18:20:28,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:28,618 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:20:28,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500778332] [2020-11-29 18:20:28,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:29,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 2613 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:20:29,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:30,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:30,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565138202] [2020-11-29 18:20:30,041 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:20:30,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500778332] [2020-11-29 18:20:30,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:30,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:20:30,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569649085] [2020-11-29 18:20:30,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:20:30,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:30,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:20:30,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:20:30,044 INFO L87 Difference]: Start difference. First operand 108 states and 127 transitions. Second operand 4 states. [2020-11-29 18:20:30,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:30,078 INFO L93 Difference]: Finished difference Result 173 states and 202 transitions. [2020-11-29 18:20:30,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:20:30,080 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-11-29 18:20:30,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:30,081 INFO L225 Difference]: With dead ends: 173 [2020-11-29 18:20:30,081 INFO L226 Difference]: Without dead ends: 108 [2020-11-29 18:20:30,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:20:30,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-29 18:20:30,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-29 18:20:30,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-29 18:20:30,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 125 transitions. [2020-11-29 18:20:30,097 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 125 transitions. Word has length 54 [2020-11-29 18:20:30,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:30,099 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 125 transitions. [2020-11-29 18:20:30,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:20:30,099 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 125 transitions. [2020-11-29 18:20:30,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-29 18:20:30,100 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:30,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:30,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:30,328 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:30,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:30,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1242582774, now seen corresponding path program 1 times [2020-11-29 18:20:30,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:30,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016260816] [2020-11-29 18:20:30,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:30,458 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:20:30,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [82474957] [2020-11-29 18:20:30,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:31,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 2686 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 18:20:31,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:31,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016260816] [2020-11-29 18:20:31,705 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:20:31,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82474957] [2020-11-29 18:20:31,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:31,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:20:31,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103086617] [2020-11-29 18:20:31,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:20:31,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:31,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:20:31,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:20:31,706 INFO L87 Difference]: Start difference. First operand 108 states and 125 transitions. Second operand 4 states. [2020-11-29 18:20:32,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:32,142 INFO L93 Difference]: Finished difference Result 138 states and 160 transitions. [2020-11-29 18:20:32,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:20:32,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-11-29 18:20:32,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:32,149 INFO L225 Difference]: With dead ends: 138 [2020-11-29 18:20:32,149 INFO L226 Difference]: Without dead ends: 108 [2020-11-29 18:20:32,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:20:32,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-29 18:20:32,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-29 18:20:32,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-29 18:20:32,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 124 transitions. [2020-11-29 18:20:32,155 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 124 transitions. Word has length 59 [2020-11-29 18:20:32,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:32,155 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 124 transitions. [2020-11-29 18:20:32,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:20:32,155 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 124 transitions. [2020-11-29 18:20:32,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-11-29 18:20:32,156 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:32,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:32,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:32,370 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:32,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:32,370 INFO L82 PathProgramCache]: Analyzing trace with hash -231511021, now seen corresponding path program 1 times [2020-11-29 18:20:32,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:32,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150629017] [2020-11-29 18:20:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:32,471 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:20:32,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819242395] [2020-11-29 18:20:32,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:33,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 2711 conjuncts, 26 conjunts are in the unsatisfiable core [2020-11-29 18:20:33,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:33,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:33,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150629017] [2020-11-29 18:20:33,713 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:20:33,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819242395] [2020-11-29 18:20:33,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:33,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 18:20:33,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865340333] [2020-11-29 18:20:33,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 18:20:33,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:33,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 18:20:33,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:20:33,715 INFO L87 Difference]: Start difference. First operand 108 states and 124 transitions. Second operand 7 states. [2020-11-29 18:20:34,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:34,080 INFO L93 Difference]: Finished difference Result 150 states and 172 transitions. [2020-11-29 18:20:34,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 18:20:34,080 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-11-29 18:20:34,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:34,081 INFO L225 Difference]: With dead ends: 150 [2020-11-29 18:20:34,081 INFO L226 Difference]: Without dead ends: 106 [2020-11-29 18:20:34,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-29 18:20:34,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-11-29 18:20:34,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-11-29 18:20:34,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-29 18:20:34,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2020-11-29 18:20:34,086 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 65 [2020-11-29 18:20:34,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:34,086 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2020-11-29 18:20:34,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 18:20:34,086 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2020-11-29 18:20:34,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-11-29 18:20:34,087 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:34,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-11-29 18:20:34,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:34,300 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:34,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:34,301 INFO L82 PathProgramCache]: Analyzing trace with hash -961600890, now seen corresponding path program 1 times [2020-11-29 18:20:34,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:34,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319359155] [2020-11-29 18:20:34,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:34,405 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:20:34,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7785175] [2020-11-29 18:20:34,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:35,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 2835 conjuncts, 33 conjunts are in the unsatisfiable core [2020-11-29 18:20:35,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:35,753 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 18:20:35,753 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:20:35,760 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:20:35,761 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:20:35,761 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-11-29 18:20:35,825 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:20:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:35,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319359155] [2020-11-29 18:20:35,885 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:20:35,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7785175] [2020-11-29 18:20:35,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:35,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-29 18:20:35,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154579911] [2020-11-29 18:20:35,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-29 18:20:35,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:35,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-29 18:20:35,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-11-29 18:20:35,890 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand 14 states. [2020-11-29 18:20:43,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:43,400 INFO L93 Difference]: Finished difference Result 131 states and 149 transitions. [2020-11-29 18:20:43,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-29 18:20:43,402 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 75 [2020-11-29 18:20:43,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:43,403 INFO L225 Difference]: With dead ends: 131 [2020-11-29 18:20:43,403 INFO L226 Difference]: Without dead ends: 112 [2020-11-29 18:20:43,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2020-11-29 18:20:43,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-11-29 18:20:43,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2020-11-29 18:20:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-29 18:20:43,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2020-11-29 18:20:43,416 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 75 [2020-11-29 18:20:43,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:43,417 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2020-11-29 18:20:43,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-29 18:20:43,418 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2020-11-29 18:20:43,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-11-29 18:20:43,420 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:43,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-11-29 18:20:43,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:43,636 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:43,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:43,636 INFO L82 PathProgramCache]: Analyzing trace with hash 813406472, now seen corresponding path program 1 times [2020-11-29 18:20:43,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:43,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841853883] [2020-11-29 18:20:43,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:43,760 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:20:43,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1475056163] [2020-11-29 18:20:43,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:44,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 18:20:44,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:45,010 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:20:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:45,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841853883] [2020-11-29 18:20:45,033 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:20:45,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475056163] [2020-11-29 18:20:45,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:45,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:20:45,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78006986] [2020-11-29 18:20:45,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:20:45,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:45,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:20:45,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:20:45,035 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand 5 states. [2020-11-29 18:20:45,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:45,317 INFO L93 Difference]: Finished difference Result 130 states and 147 transitions. [2020-11-29 18:20:45,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:20:45,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2020-11-29 18:20:45,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:45,318 INFO L225 Difference]: With dead ends: 130 [2020-11-29 18:20:45,318 INFO L226 Difference]: Without dead ends: 106 [2020-11-29 18:20:45,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:20:45,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-11-29 18:20:45,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-11-29 18:20:45,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-29 18:20:45,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2020-11-29 18:20:45,324 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 75 [2020-11-29 18:20:45,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:45,324 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2020-11-29 18:20:45,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:20:45,324 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2020-11-29 18:20:45,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-11-29 18:20:45,325 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:45,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:45,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:45,540 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:45,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:45,540 INFO L82 PathProgramCache]: Analyzing trace with hash -2145069215, now seen corresponding path program 1 times [2020-11-29 18:20:45,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:45,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134375393] [2020-11-29 18:20:45,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:45,637 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:20:45,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28774094] [2020-11-29 18:20:45,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:46,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 2856 conjuncts, 23 conjunts are in the unsatisfiable core [2020-11-29 18:20:46,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:46,699 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:20:46,727 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:20:46,751 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-11-29 18:20:46,751 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:20:46,756 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-11-29 18:20:46,760 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:20:46,776 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:20:46,783 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-11-29 18:20:46,784 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 18:20:46,789 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-11-29 18:20:46,789 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 18:20:46,795 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:20:46,795 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-11-29 18:20:46,795 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:47, output treesize:9 [2020-11-29 18:20:46,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:46,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134375393] [2020-11-29 18:20:46,815 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:20:46,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28774094] [2020-11-29 18:20:46,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:46,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:20:46,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181856888] [2020-11-29 18:20:46,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:20:46,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:46,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:20:46,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:20:46,817 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 5 states. [2020-11-29 18:20:52,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:52,915 INFO L93 Difference]: Finished difference Result 139 states and 154 transitions. [2020-11-29 18:20:52,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:20:52,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2020-11-29 18:20:52,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:52,916 INFO L225 Difference]: With dead ends: 139 [2020-11-29 18:20:52,917 INFO L226 Difference]: Without dead ends: 119 [2020-11-29 18:20:52,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:20:52,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-11-29 18:20:52,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 109. [2020-11-29 18:20:52,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-29 18:20:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2020-11-29 18:20:52,923 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 77 [2020-11-29 18:20:52,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:52,923 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2020-11-29 18:20:52,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:20:52,924 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2020-11-29 18:20:52,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-29 18:20:52,924 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:52,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:53,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:53,136 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:53,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:53,136 INFO L82 PathProgramCache]: Analyzing trace with hash -358643470, now seen corresponding path program 1 times [2020-11-29 18:20:53,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:53,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134426045] [2020-11-29 18:20:53,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:53,233 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:20:53,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [889136091] [2020-11-29 18:20:53,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:20:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:55,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 2881 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:20:55,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:55,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:55,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134426045] [2020-11-29 18:20:55,297 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:20:55,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889136091] [2020-11-29 18:20:55,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:55,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:20:55,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573749459] [2020-11-29 18:20:55,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:20:55,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:55,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:20:55,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:20:55,300 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 4 states. [2020-11-29 18:20:55,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:55,470 INFO L93 Difference]: Finished difference Result 286 states and 317 transitions. [2020-11-29 18:20:55,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:20:55,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-11-29 18:20:55,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:55,482 INFO L225 Difference]: With dead ends: 286 [2020-11-29 18:20:55,482 INFO L226 Difference]: Without dead ends: 200 [2020-11-29 18:20:55,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:20:55,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-11-29 18:20:55,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 112. [2020-11-29 18:20:55,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-29 18:20:55,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2020-11-29 18:20:55,487 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 78 [2020-11-29 18:20:55,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:55,487 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2020-11-29 18:20:55,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:20:55,488 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2020-11-29 18:20:55,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-29 18:20:55,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:55,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:55,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-29 18:20:55,690 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:55,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:55,691 INFO L82 PathProgramCache]: Analyzing trace with hash -776040076, now seen corresponding path program 1 times [2020-11-29 18:20:55,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:55,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050887267] [2020-11-29 18:20:55,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:55,784 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:20:55,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813218874] [2020-11-29 18:20:55,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:25:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:25:51,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 2879 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:25:51,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:25:51,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:25:51,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050887267] [2020-11-29 18:25:51,506 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:25:51,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813218874] [2020-11-29 18:25:51,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:25:51,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:25:51,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779829292] [2020-11-29 18:25:51,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:25:51,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:25:51,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:25:51,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:25:51,508 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand 4 states. [2020-11-29 18:25:51,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:25:51,700 INFO L93 Difference]: Finished difference Result 196 states and 216 transitions. [2020-11-29 18:25:51,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:25:51,702 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-11-29 18:25:51,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:25:51,703 INFO L225 Difference]: With dead ends: 196 [2020-11-29 18:25:51,703 INFO L226 Difference]: Without dead ends: 110 [2020-11-29 18:25:51,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:25:51,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-29 18:25:51,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2020-11-29 18:25:51,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-29 18:25:51,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 117 transitions. [2020-11-29 18:25:51,713 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 117 transitions. Word has length 78 [2020-11-29 18:25:51,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:25:51,713 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 117 transitions. [2020-11-29 18:25:51,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:25:51,714 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 117 transitions. [2020-11-29 18:25:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-11-29 18:25:51,714 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:25:51,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:25:51,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:25:51,928 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:25:51,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:25:51,928 INFO L82 PathProgramCache]: Analyzing trace with hash -589599749, now seen corresponding path program 1 times [2020-11-29 18:25:51,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:25:51,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979696411] [2020-11-29 18:25:51,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:25:52,010 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:25:52,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527582657] [2020-11-29 18:25:52,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:25:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:25:53,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 2870 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:25:53,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:25:53,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:25:53,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979696411] [2020-11-29 18:25:53,168 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:25:53,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527582657] [2020-11-29 18:25:53,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:25:53,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:25:53,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590609871] [2020-11-29 18:25:53,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:25:53,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:25:53,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:25:53,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:25:53,170 INFO L87 Difference]: Start difference. First operand 107 states and 117 transitions. Second operand 4 states. [2020-11-29 18:25:53,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:25:53,328 INFO L93 Difference]: Finished difference Result 189 states and 206 transitions. [2020-11-29 18:25:53,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:25:53,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2020-11-29 18:25:53,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:25:53,332 INFO L225 Difference]: With dead ends: 189 [2020-11-29 18:25:53,332 INFO L226 Difference]: Without dead ends: 107 [2020-11-29 18:25:53,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:25:53,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-29 18:25:53,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-29 18:25:53,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-29 18:25:53,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 116 transitions. [2020-11-29 18:25:53,340 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 116 transitions. Word has length 79 [2020-11-29 18:25:53,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:25:53,340 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 116 transitions. [2020-11-29 18:25:53,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:25:53,340 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 116 transitions. [2020-11-29 18:25:53,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-11-29 18:25:53,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:25:53,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:25:53,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:25:53,556 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:25:53,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:25:53,556 INFO L82 PathProgramCache]: Analyzing trace with hash -658597663, now seen corresponding path program 1 times [2020-11-29 18:25:53,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:25:53,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788314160] [2020-11-29 18:25:53,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:25:53,642 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:25:53,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [421262085] [2020-11-29 18:25:53,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:25:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:25:54,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 2891 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:25:54,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:25:54,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:25:54,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788314160] [2020-11-29 18:25:54,606 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:25:54,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421262085] [2020-11-29 18:25:54,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:25:54,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:25:54,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530837942] [2020-11-29 18:25:54,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:25:54,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:25:54,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:25:54,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:25:54,607 INFO L87 Difference]: Start difference. First operand 107 states and 116 transitions. Second operand 5 states. [2020-11-29 18:25:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:25:54,917 INFO L93 Difference]: Finished difference Result 107 states and 116 transitions. [2020-11-29 18:25:54,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:25:54,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2020-11-29 18:25:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:25:54,918 INFO L225 Difference]: With dead ends: 107 [2020-11-29 18:25:54,918 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:25:54,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:25:54,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:25:54,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:25:54,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:25:54,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:25:54,919 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2020-11-29 18:25:54,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:25:54,919 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:25:54,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:25:54,919 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:25:54,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:25:55,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-29 18:25:55,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:25:55,341 INFO L270 CegarLoopResult]: At program point L10110-1(lines 10065 10112) the Hoare annotation is: false [2020-11-29 18:25:55,341 INFO L274 CegarLoopResult]: For program point L9218-2(lines 9218 9220) no Hoare annotation was computed. [2020-11-29 18:25:55,341 INFO L270 CegarLoopResult]: At program point L250(lines 248 251) the Hoare annotation is: false [2020-11-29 18:25:55,341 INFO L270 CegarLoopResult]: At program point L10110(lines 10065 10112) the Hoare annotation is: false [2020-11-29 18:25:55,341 INFO L274 CegarLoopResult]: For program point L7385-3(lines 7385 7387) no Hoare annotation was computed. [2020-11-29 18:25:55,341 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 208) no Hoare annotation was computed. [2020-11-29 18:25:55,341 INFO L274 CegarLoopResult]: For program point L7385-2(lines 7385 7387) no Hoare annotation was computed. [2020-11-29 18:25:55,341 INFO L274 CegarLoopResult]: For program point L7385-1(lines 7385 7387) no Hoare annotation was computed. [2020-11-29 18:25:55,341 INFO L274 CegarLoopResult]: For program point L7385(lines 7385 7387) no Hoare annotation was computed. [2020-11-29 18:25:55,341 INFO L274 CegarLoopResult]: For program point L7385-5(lines 7385 7387) no Hoare annotation was computed. [2020-11-29 18:25:55,342 INFO L274 CegarLoopResult]: For program point L7385-4(lines 7385 7387) no Hoare annotation was computed. [2020-11-29 18:25:55,342 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:25:55,342 INFO L270 CegarLoopResult]: At program point L6940(lines 6934 6941) the Hoare annotation is: false [2020-11-29 18:25:55,342 INFO L270 CegarLoopResult]: At program point L2630(lines 2626 2631) the Hoare annotation is: false [2020-11-29 18:25:55,342 INFO L270 CegarLoopResult]: At program point L10178(lines 10167 10179) the Hoare annotation is: (<= (+ |ULTIMATE.start_hash_table_state_required_bytes_#res| 1) 0) [2020-11-29 18:25:55,342 INFO L270 CegarLoopResult]: At program point L2630-1(lines 2626 2631) the Hoare annotation is: false [2020-11-29 18:25:55,342 INFO L274 CegarLoopResult]: For program point L2498(lines 2498 2499) no Hoare annotation was computed. [2020-11-29 18:25:55,342 INFO L274 CegarLoopResult]: For program point L2498-2(lines 2498 2499) no Hoare annotation was computed. [2020-11-29 18:25:55,342 INFO L274 CegarLoopResult]: For program point L2498-1(lines 2498 2499) no Hoare annotation was computed. [2020-11-29 18:25:55,342 INFO L274 CegarLoopResult]: For program point L9204(lines 9204 9208) no Hoare annotation was computed. [2020-11-29 18:25:55,342 INFO L277 CegarLoopResult]: At program point L10195(line 10195) the Hoare annotation is: true [2020-11-29 18:25:55,342 INFO L274 CegarLoopResult]: For program point L10180(lines 10180 10194) no Hoare annotation was computed. [2020-11-29 18:25:55,343 INFO L270 CegarLoopResult]: At program point L9239(lines 9215 9240) the Hoare annotation is: (and (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296)) (< 1 ULTIMATE.start_aws_hash_table_init_~map.base) (<= (+ |ULTIMATE.start_s_update_template_size_#res| 1) 0) (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (< 0 |#StackHeapBarrier|)) [2020-11-29 18:25:55,343 INFO L270 CegarLoopResult]: At program point L2501-1(lines 2497 2502) the Hoare annotation is: false [2020-11-29 18:25:55,343 INFO L274 CegarLoopResult]: For program point L7010(lines 7010 7014) no Hoare annotation was computed. [2020-11-29 18:25:55,343 INFO L270 CegarLoopResult]: At program point L2501(lines 2497 2502) the Hoare annotation is: false [2020-11-29 18:25:55,343 INFO L270 CegarLoopResult]: At program point L2501-2(lines 2497 2502) the Hoare annotation is: false [2020-11-29 18:25:55,343 INFO L270 CegarLoopResult]: At program point L255(lines 253 256) the Hoare annotation is: false [2020-11-29 18:25:55,343 INFO L270 CegarLoopResult]: At program point L255-1(lines 253 256) the Hoare annotation is: false [2020-11-29 18:25:55,343 INFO L274 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-11-29 18:25:55,343 INFO L270 CegarLoopResult]: At program point L255-2(lines 253 256) the Hoare annotation is: false [2020-11-29 18:25:55,343 INFO L274 CegarLoopResult]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2020-11-29 18:25:55,343 INFO L270 CegarLoopResult]: At program point L2617(lines 2613 2621) the Hoare annotation is: false [2020-11-29 18:25:55,343 INFO L274 CegarLoopResult]: For program point L9273(lines 9273 9275) no Hoare annotation was computed. [2020-11-29 18:25:55,343 INFO L274 CegarLoopResult]: For program point L9224(lines 9224 9226) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point L223-2(line 223) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point L10067(lines 10067 10071) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point L10067-1(lines 10067 10071) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L270 CegarLoopResult]: At program point L9242(lines 9242 9283) the Hoare annotation is: (<= (+ |ULTIMATE.start_aws_hash_table_init_#res| 1) 0) [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point L208-2(line 208) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point L208-3(line 208) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L270 CegarLoopResult]: At program point L9211(lines 9193 9212) the Hoare annotation is: (and (= |ULTIMATE.start_s_alloc_state_#res.base| 0) (= |ULTIMATE.start_s_alloc_state_#res.offset| 0)) [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point L210(lines 210 212) no Hoare annotation was computed. [2020-11-29 18:25:55,344 INFO L274 CegarLoopResult]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L2638(lines 2638 2641) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L9195(lines 9195 9199) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L210-9(lines 210 212) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L10170(lines 10170 10172) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L9278(lines 9278 9280) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L211-2(line 211) no Hoare annotation was computed. [2020-11-29 18:25:55,345 INFO L274 CegarLoopResult]: For program point L211-4(line 211) no Hoare annotation was computed. [2020-11-29 18:25:55,346 INFO L274 CegarLoopResult]: For program point L211-6(line 211) no Hoare annotation was computed. [2020-11-29 18:25:55,346 INFO L274 CegarLoopResult]: For program point L211-8(line 211) no Hoare annotation was computed. [2020-11-29 18:25:55,346 INFO L274 CegarLoopResult]: For program point L211-10(line 211) no Hoare annotation was computed. [2020-11-29 18:25:55,346 INFO L274 CegarLoopResult]: For program point L211-12(line 211) no Hoare annotation was computed. [2020-11-29 18:25:55,346 INFO L274 CegarLoopResult]: For program point L211-14(line 211) no Hoare annotation was computed. [2020-11-29 18:25:55,346 INFO L270 CegarLoopResult]: At program point L261(line 261) the Hoare annotation is: false [2020-11-29 18:25:55,346 INFO L274 CegarLoopResult]: For program point L211-16(line 211) no Hoare annotation was computed. [2020-11-29 18:25:55,346 INFO L274 CegarLoopResult]: For program point L211-18(line 211) no Hoare annotation was computed. [2020-11-29 18:25:55,346 INFO L270 CegarLoopResult]: At program point L2590(lines 2586 2594) the Hoare annotation is: false [2020-11-29 18:25:55,346 INFO L270 CegarLoopResult]: At program point L2590-2(lines 2586 2594) the Hoare annotation is: false [2020-11-29 18:25:55,346 INFO L270 CegarLoopResult]: At program point L2590-1(lines 2586 2594) the Hoare annotation is: false [2020-11-29 18:25:55,346 INFO L270 CegarLoopResult]: At program point L6951-1(lines 6950 6952) the Hoare annotation is: false [2020-11-29 18:25:55,346 INFO L274 CegarLoopResult]: For program point L10056-3(line 10056) no Hoare annotation was computed. [2020-11-29 18:25:55,346 INFO L270 CegarLoopResult]: At program point L6951(lines 6950 6952) the Hoare annotation is: (< 0 |#StackHeapBarrier|) [2020-11-29 18:25:55,347 INFO L274 CegarLoopResult]: For program point L7017-2(lines 7017 7019) no Hoare annotation was computed. [2020-11-29 18:25:55,347 INFO L274 CegarLoopResult]: For program point L10056-5(line 10056) no Hoare annotation was computed. [2020-11-29 18:25:55,347 INFO L274 CegarLoopResult]: For program point L7017(lines 7017 7019) no Hoare annotation was computed. [2020-11-29 18:25:55,347 INFO L270 CegarLoopResult]: At program point L10056-6(lines 10054 10057) the Hoare annotation is: false [2020-11-29 18:25:55,347 INFO L274 CegarLoopResult]: For program point L10056(line 10056) no Hoare annotation was computed. [2020-11-29 18:25:55,347 INFO L274 CegarLoopResult]: For program point L10056-2(line 10056) no Hoare annotation was computed. [2020-11-29 18:25:55,347 INFO L270 CegarLoopResult]: At program point L2657(lines 2637 2658) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_aws_raise_error_#res| 1) 0) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296)) (< 1 ULTIMATE.start_aws_hash_table_init_~map.base) (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (< 0 |#StackHeapBarrier|) (<= (+ |ULTIMATE.start_aws_round_up_to_power_of_two_#res| 1) 0)) [2020-11-29 18:25:55,347 INFO L274 CegarLoopResult]: For program point L10056-12(line 10056) no Hoare annotation was computed. [2020-11-29 18:25:55,347 INFO L270 CegarLoopResult]: At program point L10056-13(lines 10054 10057) the Hoare annotation is: false [2020-11-29 18:25:55,347 INFO L274 CegarLoopResult]: For program point L10056-7(line 10056) no Hoare annotation was computed. [2020-11-29 18:25:55,347 INFO L274 CegarLoopResult]: For program point L10056-9(line 10056) no Hoare annotation was computed. [2020-11-29 18:25:55,347 INFO L274 CegarLoopResult]: For program point L10056-10(line 10056) no Hoare annotation was computed. [2020-11-29 18:25:55,347 INFO L274 CegarLoopResult]: For program point L2542(lines 2542 2543) no Hoare annotation was computed. [2020-11-29 18:25:55,347 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:25:55,348 INFO L274 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-11-29 18:25:55,348 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 208) no Hoare annotation was computed. [2020-11-29 18:25:55,348 INFO L274 CegarLoopResult]: For program point L2642(lines 2642 2644) no Hoare annotation was computed. [2020-11-29 18:25:55,348 INFO L270 CegarLoopResult]: At program point L1998(lines 1988 1999) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_aws_raise_error_#res| 1) 0) (<= 2 (mod ULTIMATE.start_s_update_template_size_~min_size~0 4294967296)) (< 1 ULTIMATE.start_aws_hash_table_init_~map.base) (<= 2 (mod ULTIMATE.start_aws_round_up_to_power_of_two_~n 4294967296)) (< 0 |#StackHeapBarrier|)) [2020-11-29 18:25:55,348 INFO L270 CegarLoopResult]: At program point L1998-1(lines 1988 1999) the Hoare annotation is: false [2020-11-29 18:25:55,348 INFO L270 CegarLoopResult]: At program point L6986(lines 6984 6987) the Hoare annotation is: false [2020-11-29 18:25:55,348 INFO L274 CegarLoopResult]: For program point L9232(lines 9232 9234) no Hoare annotation was computed. [2020-11-29 18:25:55,348 INFO L270 CegarLoopResult]: At program point L1998-2(lines 1988 1999) the Hoare annotation is: false [2020-11-29 18:25:55,348 INFO L270 CegarLoopResult]: At program point L1998-3(lines 1988 1999) the Hoare annotation is: false [2020-11-29 18:25:55,348 INFO L274 CegarLoopResult]: For program point L9232-2(lines 9232 9234) no Hoare annotation was computed. [2020-11-29 18:25:55,348 INFO L270 CegarLoopResult]: At program point L1998-4(lines 1988 1999) the Hoare annotation is: false [2020-11-29 18:25:55,348 INFO L270 CegarLoopResult]: At program point L1998-5(lines 1988 1999) the Hoare annotation is: (and (= ULTIMATE.start_aws_mem_calloc_~mem~1.base 0) (= ULTIMATE.start_aws_mem_calloc_~mem~1.offset 0)) [2020-11-29 18:25:55,349 INFO L270 CegarLoopResult]: At program point L9282-2(line 9282) the Hoare annotation is: false [2020-11-29 18:25:55,349 INFO L274 CegarLoopResult]: For program point L9282-3(line 9282) no Hoare annotation was computed. [2020-11-29 18:25:55,349 INFO L274 CegarLoopResult]: For program point L10174(lines 10174 10176) no Hoare annotation was computed. [2020-11-29 18:25:55,349 INFO L274 CegarLoopResult]: For program point L10191-2(lines 10191 10193) no Hoare annotation was computed. [2020-11-29 18:25:55,349 INFO L270 CegarLoopResult]: At program point L7020(lines 7001 7021) the Hoare annotation is: (and (= |ULTIMATE.start_aws_mem_calloc_#res.offset| 0) (= |ULTIMATE.start_aws_mem_calloc_#res.base| 0)) [2020-11-29 18:25:55,349 INFO L274 CegarLoopResult]: For program point L10191(lines 10191 10193) no Hoare annotation was computed. [2020-11-29 18:25:55,349 INFO L270 CegarLoopResult]: At program point L2545(lines 2541 2546) the Hoare annotation is: false [2020-11-29 18:25:55,349 INFO L274 CegarLoopResult]: For program point L6955(lines 6955 6957) no Hoare annotation was computed. [2020-11-29 18:25:55,349 INFO L270 CegarLoopResult]: At program point L6955-3(lines 6954 6958) the Hoare annotation is: (and (= |ULTIMATE.start_can_fail_calloc_#res.offset| 0) (= |ULTIMATE.start_can_fail_calloc_#res.base| 0)) [2020-11-29 18:25:55,349 INFO L274 CegarLoopResult]: For program point L9218(lines 9218 9220) no Hoare annotation was computed. [2020-11-29 18:25:55,349 INFO L274 CegarLoopResult]: For program point L6955-2(lines 6955 6957) no Hoare annotation was computed. [2020-11-29 18:25:55,360 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:55,362 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:55,364 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:55,364 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:55,366 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:55,367 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:55,369 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:55,369 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:55,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:25:55 BoogieIcfgContainer [2020-11-29 18:25:55,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:25:55,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:25:55,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:25:55,371 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:25:55,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:23" (3/4) ... [2020-11-29 18:25:55,374 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:25:55,403 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 188 nodes and edges [2020-11-29 18:25:55,405 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2020-11-29 18:25:55,407 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2020-11-29 18:25:55,409 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-29 18:25:55,411 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-29 18:25:55,413 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 18:25:55,415 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 18:25:55,417 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:25:55,446 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result + 1 <= 0 && 2 <= min_size % 4294967296) && 1 < map) && 2 <= n % 4294967296) && 0 < unknown-#StackHeapBarrier-unknown) && \result + 1 <= 0 [2020-11-29 18:25:55,446 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= min_size % 4294967296 && 1 < map) && \result + 1 <= 0) && 2 <= n % 4294967296) && 0 < unknown-#StackHeapBarrier-unknown [2020-11-29 18:25:55,447 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result + 1 <= 0 && 2 <= min_size % 4294967296) && 1 < map) && 2 <= n % 4294967296) && 0 < unknown-#StackHeapBarrier-unknown [2020-11-29 18:25:55,447 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result + 1 <= 0 [2020-11-29 18:25:55,449 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result + 1 <= 0 [2020-11-29 18:25:55,449 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == 0 && \result == 0 [2020-11-29 18:25:55,451 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == 0 && \result == 0 [2020-11-29 18:25:55,452 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == 0 && \result == 0 [2020-11-29 18:25:56,263 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e3a8073e-5d6f-421f-92a2-c42ec559eb0b/bin/uautomizer/witness.graphml [2020-11-29 18:25:56,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:25:56,264 INFO L168 Benchmark]: Toolchain (without parser) took 346667.87 ms. Allocated memory was 88.1 MB in the beginning and 1.0 GB in the end (delta: 912.3 MB). Free memory was 47.5 MB in the beginning and 784.8 MB in the end (delta: -737.4 MB). Peak memory consumption was 660.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:56,265 INFO L168 Benchmark]: CDTParser took 1.61 ms. Allocated memory is still 88.1 MB. Free memory was 45.3 MB in the beginning and 45.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:25:56,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4334.08 ms. Allocated memory was 88.1 MB in the beginning and 136.3 MB in the end (delta: 48.2 MB). Free memory was 47.3 MB in the beginning and 39.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 73.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:56,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 355.35 ms. Allocated memory is still 136.3 MB. Free memory was 39.4 MB in the beginning and 79.0 MB in the end (delta: -39.6 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:56,266 INFO L168 Benchmark]: Boogie Preprocessor took 161.64 ms. Allocated memory is still 136.3 MB. Free memory was 79.0 MB in the beginning and 70.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:56,266 INFO L168 Benchmark]: RCFGBuilder took 9430.82 ms. Allocated memory was 136.3 MB in the beginning and 723.5 MB in the end (delta: 587.2 MB). Free memory was 70.6 MB in the beginning and 634.4 MB in the end (delta: -563.8 MB). Peak memory consumption was 331.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:56,267 INFO L168 Benchmark]: TraceAbstraction took 331486.52 ms. Allocated memory was 723.5 MB in the beginning and 1.0 GB in the end (delta: 276.8 MB). Free memory was 633.4 MB in the beginning and 368.5 MB in the end (delta: 264.9 MB). Peak memory consumption was 541.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:56,267 INFO L168 Benchmark]: Witness Printer took 892.48 ms. Allocated memory is still 1.0 GB. Free memory was 368.5 MB in the beginning and 784.8 MB in the end (delta: -416.4 MB). Peak memory consumption was 69.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:56,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.61 ms. Allocated memory is still 88.1 MB. Free memory was 45.3 MB in the beginning and 45.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4334.08 ms. Allocated memory was 88.1 MB in the beginning and 136.3 MB in the end (delta: 48.2 MB). Free memory was 47.3 MB in the beginning and 39.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 73.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 355.35 ms. Allocated memory is still 136.3 MB. Free memory was 39.4 MB in the beginning and 79.0 MB in the end (delta: -39.6 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 161.64 ms. Allocated memory is still 136.3 MB. Free memory was 79.0 MB in the beginning and 70.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9430.82 ms. Allocated memory was 136.3 MB in the beginning and 723.5 MB in the end (delta: 587.2 MB). Free memory was 70.6 MB in the beginning and 634.4 MB in the end (delta: -563.8 MB). Peak memory consumption was 331.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 331486.52 ms. Allocated memory was 723.5 MB in the beginning and 1.0 GB in the end (delta: 276.8 MB). Free memory was 633.4 MB in the beginning and 368.5 MB in the end (delta: 264.9 MB). Peak memory consumption was 541.7 MB. Max. memory is 16.1 GB. * Witness Printer took 892.48 ms. Allocated memory is still 1.0 GB. Free memory was 368.5 MB in the beginning and 784.8 MB in the end (delta: -416.4 MB). Peak memory consumption was 69.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 208]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 208]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 1988]: Loop Invariant [2020-11-29 18:25:56,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:56,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: (((\result + 1 <= 0 && 2 <= min_size % 4294967296) && 1 < map) && 2 <= n % 4294967296) && 0 < unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6984]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9215]: Loop Invariant [2020-11-29 18:25:56,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:56,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: (((2 <= min_size % 4294967296 && 1 < map) && \result + 1 <= 0) && 2 <= n % 4294967296) && 0 < unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10054]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10065]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2541]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10065]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7001]: Loop Invariant Derived loop invariant: \result == 0 && \result == 0 - InvariantResult [Line: 2613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10167]: Loop Invariant Derived loop invariant: \result + 1 <= 0 - InvariantResult [Line: 2637]: Loop Invariant [2020-11-29 18:25:56,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:56,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((\result + 1 <= 0 && 2 <= min_size % 4294967296) && 1 < map) && 2 <= n % 4294967296) && 0 < unknown-#StackHeapBarrier-unknown) && \result + 1 <= 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10054]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6934]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9242]: Loop Invariant Derived loop invariant: \result + 1 <= 0 - InvariantResult [Line: 6950]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1988]: Loop Invariant Derived loop invariant: mem == 0 && mem == 0 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9193]: Loop Invariant Derived loop invariant: \result == 0 && \result == 0 - InvariantResult [Line: 2626]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2586]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10195]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6954]: Loop Invariant Derived loop invariant: \result == 0 && \result == 0 - InvariantResult [Line: 6950]: Loop Invariant [2020-11-29 18:25:56,284 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-29 18:25:56,284 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: 0 < unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 2626]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 115 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 331.1s, OverallIterations: 15, TraceHistogramMax: 1, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1780 SDtfs, 1178 SDslu, 3923 SDs, 0 SdLazy, 352 SolverSat, 25 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 14.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 799 GetRequests, 721 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 269 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 38 PreInvPairs, 51 NumberOfFragments, 140 HoareAnnotationTreeSize, 38 FomulaSimplifications, 92 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 38 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.9s SsaConstructionTime, 303.0s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 891 NumberOfCodeBlocks, 891 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 876 ConstructedInterpolants, 0 QuantifiedInterpolants, 83324 SizeOfPredicates, 68 NumberOfNonLiveVariables, 30505 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 proved your program to be correct! Received shutdown request...