./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX --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 d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:33:50,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:33:50,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:33:50,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:33:50,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:33:50,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:33:50,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:33:50,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:33:50,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:33:50,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:33:50,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:33:50,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:33:50,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:33:50,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:33:50,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:33:50,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:33:50,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:33:50,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:33:50,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:33:50,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:33:50,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:33:50,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:33:50,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:33:50,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:33:50,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:33:50,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:33:50,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:33:50,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:33:50,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:33:50,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:33:50,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:33:50,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:33:50,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:33:50,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:33:50,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:33:50,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:33:50,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:33:50,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:33:50,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:33:50,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:33:50,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:33:50,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 09:33:50,922 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:33:50,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:33:50,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:33:50,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:33:50,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:33:50,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:33:50,925 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:33:50,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:33:50,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:33:50,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:33:50,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:33:50,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:33:50,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:33:50,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:33:50,928 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:33:50,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:33:50,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:33:50,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:33:50,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:33:50,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:33:50,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:33:50,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:33:50,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:33:50,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:33:50,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:33:50,931 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:33:50,931 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:33:50,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:33:50,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:33:50,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd [2021-11-09 09:33:51,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:33:51,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:33:51,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:33:51,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:33:51,210 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:33:51,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-09 09:33:51,311 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/data/0a58b09fe/51001dab0ade4958adcc581c82581c89/FLAGf73595901 [2021-11-09 09:33:52,250 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:33:52,251 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-09 09:33:52,311 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/data/0a58b09fe/51001dab0ade4958adcc581c82581c89/FLAGf73595901 [2021-11-09 09:33:52,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/data/0a58b09fe/51001dab0ade4958adcc581c82581c89 [2021-11-09 09:33:52,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:33:52,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:33:52,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:33:52,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:33:52,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:33:52,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:33:52" (1/1) ... [2021-11-09 09:33:52,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f837f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:52, skipping insertion in model container [2021-11-09 09:33:52,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:33:52" (1/1) ... [2021-11-09 09:33:52,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:33:52,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:33:53,205 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-09 09:33:53,214 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-09 09:33:53,245 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 09:33:53,261 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 09:33:54,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:54,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:54,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:54,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:54,483 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:54,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:54,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:54,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:54,509 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 09:33:55,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 09:33:55,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 09:33:55,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 09:33:55,076 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 09:33:55,077 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 09:33:55,077 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 09:33:55,078 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 09:33:55,079 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 09:33:55,080 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 09:33:55,254 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 09:33:55,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:55,670 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:33:55,701 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-09 09:33:55,704 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-09 09:33:55,707 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 09:33:55,710 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 09:33:55,773 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,773 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,774 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,774 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,793 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,795 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,858 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 09:33:55,859 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 09:33:55,860 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 09:33:55,861 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 09:33:55,863 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 09:33:55,865 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 09:33:55,865 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 09:33:55,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 09:33:55,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 09:33:55,867 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 09:33:55,891 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 09:33:55,975 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:55,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 09:33:56,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:56,301 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:33:56,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56 WrapperNode [2021-11-09 09:33:56,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:33:56,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:56,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:33:56,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:33:56,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56" (1/1) ... [2021-11-09 09:33:56,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56" (1/1) ... [2021-11-09 09:33:56,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:56,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:33:56,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:33:56,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:33:56,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56" (1/1) ... [2021-11-09 09:33:56,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56" (1/1) ... [2021-11-09 09:33:56,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56" (1/1) ... [2021-11-09 09:33:56,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56" (1/1) ... [2021-11-09 09:33:56,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56" (1/1) ... [2021-11-09 09:33:56,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56" (1/1) ... [2021-11-09 09:33:56,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56" (1/1) ... [2021-11-09 09:33:56,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:33:56,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:33:56,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:33:56,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:33:56,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56" (1/1) ... [2021-11-09 09:33:56,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:33:56,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:33:56,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:33:56,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:33:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:33:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2021-11-09 09:33:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-09 09:33:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-09 09:33:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 09:33:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 09:33:56,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 09:33:56,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:33:56,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:33:56,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-09 09:33:56,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 09:33:56,833 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-09 09:33:56,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:33:56,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 09:33:56,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 09:33:56,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2021-11-09 09:33:56,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:34:07,647 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume !true; [2021-11-09 09:34:07,658 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:34:07,658 INFO L299 CfgBuilder]: Removed 92 assume(true) statements. [2021-11-09 09:34:07,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:34:07 BoogieIcfgContainer [2021-11-09 09:34:07,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:34:07,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:34:07,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:34:07,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:34:07,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:33:52" (1/3) ... [2021-11-09 09:34:07,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479db507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:34:07, skipping insertion in model container [2021-11-09 09:34:07,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:56" (2/3) ... [2021-11-09 09:34:07,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479db507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:34:07, skipping insertion in model container [2021-11-09 09:34:07,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:34:07" (3/3) ... [2021-11-09 09:34:07,673 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_c_str_harness.i [2021-11-09 09:34:07,680 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:34:07,680 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-09 09:34:07,749 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:34:07,761 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 09:34:07,762 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-09 09:34:07,783 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 99 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:07,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-09 09:34:07,789 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:07,790 INFO L513 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] [2021-11-09 09:34:07,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:34:07,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:07,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2038439556, now seen corresponding path program 1 times [2021-11-09 09:34:07,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:07,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758343512] [2021-11-09 09:34:07,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:07,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:08,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:08,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:08,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758343512] [2021-11-09 09:34:08,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758343512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:08,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:08,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:34:08,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520544384] [2021-11-09 09:34:08,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:34:08,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:08,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:34:08,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:34:08,663 INFO L87 Difference]: Start difference. First operand has 100 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 99 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:08,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:08,689 INFO L93 Difference]: Finished difference Result 195 states and 254 transitions. [2021-11-09 09:34:08,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:34:08,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-09 09:34:08,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:08,700 INFO L225 Difference]: With dead ends: 195 [2021-11-09 09:34:08,700 INFO L226 Difference]: Without dead ends: 94 [2021-11-09 09:34:08,703 INFO L786 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 [2021-11-09 09:34:08,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-09 09:34:08,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-11-09 09:34:08,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.2183908045977012) internal successors, (106), 93 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:08,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2021-11-09 09:34:08,743 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 28 [2021-11-09 09:34:08,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:08,744 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2021-11-09 09:34:08,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:08,745 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2021-11-09 09:34:08,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-09 09:34:08,746 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:08,746 INFO L513 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] [2021-11-09 09:34:08,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:34:08,747 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:34:08,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:08,748 INFO L85 PathProgramCache]: Analyzing trace with hash -194592266, now seen corresponding path program 1 times [2021-11-09 09:34:08,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:08,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692903567] [2021-11-09 09:34:08,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:08,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:09,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:09,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:09,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692903567] [2021-11-09 09:34:09,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692903567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:09,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:09,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:34:09,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327031625] [2021-11-09 09:34:09,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:34:09,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:09,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:34:09,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:34:09,220 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:09,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:09,382 INFO L93 Difference]: Finished difference Result 203 states and 229 transitions. [2021-11-09 09:34:09,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:34:09,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-09 09:34:09,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:09,392 INFO L225 Difference]: With dead ends: 203 [2021-11-09 09:34:09,392 INFO L226 Difference]: Without dead ends: 166 [2021-11-09 09:34:09,394 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:34:09,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-09 09:34:09,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 97. [2021-11-09 09:34:09,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 90 states have (on average 1.211111111111111) internal successors, (109), 96 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:09,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2021-11-09 09:34:09,420 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 28 [2021-11-09 09:34:09,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:09,420 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2021-11-09 09:34:09,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:09,421 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2021-11-09 09:34:09,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-09 09:34:09,422 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:09,422 INFO L513 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] [2021-11-09 09:34:09,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:34:09,423 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:34:09,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:09,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1532971438, now seen corresponding path program 1 times [2021-11-09 09:34:09,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:09,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2846269] [2021-11-09 09:34:09,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:09,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:09,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:09,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2846269] [2021-11-09 09:34:09,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2846269] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:09,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:09,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:34:09,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881736494] [2021-11-09 09:34:09,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:34:09,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:09,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:34:09,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:34:09,873 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:10,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:10,050 INFO L93 Difference]: Finished difference Result 144 states and 157 transitions. [2021-11-09 09:34:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:34:10,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-09 09:34:10,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:10,052 INFO L225 Difference]: With dead ends: 144 [2021-11-09 09:34:10,052 INFO L226 Difference]: Without dead ends: 110 [2021-11-09 09:34:10,053 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:34:10,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-09 09:34:10,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2021-11-09 09:34:10,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 93 states have (on average 1.2043010752688172) internal successors, (112), 99 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:10,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2021-11-09 09:34:10,066 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 30 [2021-11-09 09:34:10,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:10,067 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2021-11-09 09:34:10,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:10,068 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2021-11-09 09:34:10,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-09 09:34:10,070 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:10,070 INFO L513 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] [2021-11-09 09:34:10,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 09:34:10,071 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:34:10,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:10,072 INFO L85 PathProgramCache]: Analyzing trace with hash 62642754, now seen corresponding path program 1 times [2021-11-09 09:34:10,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:10,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909629286] [2021-11-09 09:34:10,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:10,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:10,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:10,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:10,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909629286] [2021-11-09 09:34:10,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909629286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:10,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:10,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:34:10,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977086641] [2021-11-09 09:34:10,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:34:10,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:10,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:34:10,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:34:10,993 INFO L87 Difference]: Start difference. First operand 100 states and 112 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:11,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:11,427 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2021-11-09 09:34:11,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:34:11,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-09 09:34:11,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:11,429 INFO L225 Difference]: With dead ends: 100 [2021-11-09 09:34:11,430 INFO L226 Difference]: Without dead ends: 91 [2021-11-09 09:34:11,430 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-11-09 09:34:11,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-09 09:34:11,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2021-11-09 09:34:11,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 87 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:11,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2021-11-09 09:34:11,438 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 32 [2021-11-09 09:34:11,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:11,439 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2021-11-09 09:34:11,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:11,439 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2021-11-09 09:34:11,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-09 09:34:11,441 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:11,441 INFO L513 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] [2021-11-09 09:34:11,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 09:34:11,442 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:34:11,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:11,443 INFO L85 PathProgramCache]: Analyzing trace with hash -359067237, now seen corresponding path program 1 times [2021-11-09 09:34:11,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:11,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121222994] [2021-11-09 09:34:11,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:11,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:11,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:11,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:11,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121222994] [2021-11-09 09:34:11,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121222994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:11,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:11,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:34:11,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550055959] [2021-11-09 09:34:11,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:34:11,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:11,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:34:11,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:34:11,920 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:12,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:12,033 INFO L93 Difference]: Finished difference Result 234 states and 262 transitions. [2021-11-09 09:34:12,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:34:12,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-09 09:34:12,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:12,036 INFO L225 Difference]: With dead ends: 234 [2021-11-09 09:34:12,036 INFO L226 Difference]: Without dead ends: 187 [2021-11-09 09:34:12,038 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:34:12,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-09 09:34:12,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 91. [2021-11-09 09:34:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 85 states have (on average 1.1764705882352942) internal successors, (100), 90 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:12,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2021-11-09 09:34:12,058 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 48 [2021-11-09 09:34:12,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:12,060 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2021-11-09 09:34:12,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:12,060 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2021-11-09 09:34:12,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-09 09:34:12,068 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:12,068 INFO L513 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] [2021-11-09 09:34:12,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 09:34:12,069 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:34:12,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:12,070 INFO L85 PathProgramCache]: Analyzing trace with hash -762261897, now seen corresponding path program 1 times [2021-11-09 09:34:12,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:12,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488249003] [2021-11-09 09:34:12,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:12,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:12,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:12,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:12,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488249003] [2021-11-09 09:34:12,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488249003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:12,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:12,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:34:12,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113850546] [2021-11-09 09:34:12,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:34:12,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:12,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:34:12,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:34:12,601 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:12,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:12,978 INFO L93 Difference]: Finished difference Result 143 states and 158 transitions. [2021-11-09 09:34:12,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 09:34:12,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-09 09:34:12,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:12,982 INFO L225 Difference]: With dead ends: 143 [2021-11-09 09:34:12,982 INFO L226 Difference]: Without dead ends: 86 [2021-11-09 09:34:12,983 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-09 09:34:12,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-09 09:34:12,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-09 09:34:12,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 80 states have (on average 1.1625) internal successors, (93), 85 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:12,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2021-11-09 09:34:12,995 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 50 [2021-11-09 09:34:12,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:12,997 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2021-11-09 09:34:12,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:12,997 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2021-11-09 09:34:12,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-09 09:34:12,999 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:13,000 INFO L513 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] [2021-11-09 09:34:13,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 09:34:13,000 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:34:13,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:13,001 INFO L85 PathProgramCache]: Analyzing trace with hash -2087599505, now seen corresponding path program 1 times [2021-11-09 09:34:13,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:13,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727674207] [2021-11-09 09:34:13,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:13,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:15,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:15,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727674207] [2021-11-09 09:34:15,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727674207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:15,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:15,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-09 09:34:15,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048848931] [2021-11-09 09:34:15,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 09:34:15,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:15,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 09:34:15,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-09 09:34:15,196 INFO L87 Difference]: Start difference. First operand 86 states and 93 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:20,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:20,679 INFO L93 Difference]: Finished difference Result 203 states and 223 transitions. [2021-11-09 09:34:20,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 09:34:20,680 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-09 09:34:20,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:20,681 INFO L225 Difference]: With dead ends: 203 [2021-11-09 09:34:20,682 INFO L226 Difference]: Without dead ends: 160 [2021-11-09 09:34:20,682 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2021-11-09 09:34:20,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-11-09 09:34:20,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 107. [2021-11-09 09:34:20,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1287128712871286) internal successors, (114), 106 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:20,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 114 transitions. [2021-11-09 09:34:20,698 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 114 transitions. Word has length 51 [2021-11-09 09:34:20,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:20,698 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 114 transitions. [2021-11-09 09:34:20,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:20,699 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 114 transitions. [2021-11-09 09:34:20,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-09 09:34:20,700 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:20,700 INFO L513 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] [2021-11-09 09:34:20,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 09:34:20,701 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:34:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:20,702 INFO L85 PathProgramCache]: Analyzing trace with hash 397288175, now seen corresponding path program 1 times [2021-11-09 09:34:20,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:20,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046619926] [2021-11-09 09:34:20,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:20,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:21,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:21,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:21,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046619926] [2021-11-09 09:34:21,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046619926] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:21,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332211231] [2021-11-09 09:34:21,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:21,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:21,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:34:21,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:34:21,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 09:34:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:22,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 2981 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:34:22,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:34:23,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:23,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332211231] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:23,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:34:23,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-11-09 09:34:23,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843378657] [2021-11-09 09:34:23,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:34:23,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:23,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:34:23,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:34:23,215 INFO L87 Difference]: Start difference. First operand 107 states and 114 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:23,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:23,836 INFO L93 Difference]: Finished difference Result 237 states and 260 transitions. [2021-11-09 09:34:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:34:23,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-09 09:34:23,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:23,839 INFO L225 Difference]: With dead ends: 237 [2021-11-09 09:34:23,839 INFO L226 Difference]: Without dead ends: 195 [2021-11-09 09:34:23,840 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:34:23,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-09 09:34:23,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 109. [2021-11-09 09:34:23,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.1359223300970873) internal successors, (117), 108 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:23,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2021-11-09 09:34:23,859 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 52 [2021-11-09 09:34:23,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:23,859 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2021-11-09 09:34:23,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:23,860 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2021-11-09 09:34:23,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-09 09:34:23,860 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:23,861 INFO L513 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] [2021-11-09 09:34:23,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:34:24,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:24,077 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:34:24,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:24,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1342921069, now seen corresponding path program 1 times [2021-11-09 09:34:24,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:24,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70377940] [2021-11-09 09:34:24,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:24,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:24,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:24,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:24,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70377940] [2021-11-09 09:34:24,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70377940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:24,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:24,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 09:34:24,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354992920] [2021-11-09 09:34:24,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:34:24,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:24,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:34:24,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:34:24,572 INFO L87 Difference]: Start difference. First operand 109 states and 117 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:24,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:24,744 INFO L93 Difference]: Finished difference Result 154 states and 168 transitions. [2021-11-09 09:34:24,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:34:24,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-09 09:34:24,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:24,747 INFO L225 Difference]: With dead ends: 154 [2021-11-09 09:34:24,747 INFO L226 Difference]: Without dead ends: 86 [2021-11-09 09:34:24,750 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:34:24,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-09 09:34:24,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-09 09:34:24,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 80 states have (on average 1.15) internal successors, (92), 85 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2021-11-09 09:34:24,762 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 53 [2021-11-09 09:34:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:24,763 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2021-11-09 09:34:24,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:24,763 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2021-11-09 09:34:24,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-09 09:34:24,764 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:24,764 INFO L513 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] [2021-11-09 09:34:24,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 09:34:24,764 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:34:24,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:24,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1779689521, now seen corresponding path program 1 times [2021-11-09 09:34:24,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:24,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900047156] [2021-11-09 09:34:24,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:24,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:26,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 09:34:26,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:26,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900047156] [2021-11-09 09:34:26,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900047156] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:34:26,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801543099] [2021-11-09 09:34:26,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:26,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:34:26,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:34:26,785 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:34:26,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 09:41:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:41:53,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 2992 conjuncts, 92 conjunts are in the unsatisfiable core [2021-11-09 09:41:53,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:41:55,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-09 09:41:55,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:41:55,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-09 09:41:56,093 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-09 09:41:56,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 21 [2021-11-09 09:41:56,387 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-09 09:41:56,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 35 [2021-11-09 09:41:56,954 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-09 09:41:56,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 38 [2021-11-09 09:41:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:41:57,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801543099] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:41:57,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:41:57,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 24] total 33 [2021-11-09 09:41:57,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783456295] [2021-11-09 09:41:57,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-09 09:41:57,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:41:57,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-09 09:41:57,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=985, Unknown=0, NotChecked=0, Total=1056 [2021-11-09 09:41:57,414 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand has 33 states, 33 states have (on average 3.0) internal successors, (99), 33 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:42:11,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:42:11,797 INFO L93 Difference]: Finished difference Result 140 states and 153 transitions. [2021-11-09 09:42:11,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-09 09:42:11,798 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 33 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-09 09:42:11,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:42:11,799 INFO L225 Difference]: With dead ends: 140 [2021-11-09 09:42:11,800 INFO L226 Difference]: Without dead ends: 96 [2021-11-09 09:42:11,802 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=626, Invalid=2680, Unknown=0, NotChecked=0, Total=3306 [2021-11-09 09:42:11,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-09 09:42:11,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 87. [2021-11-09 09:42:11,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 81 states have (on average 1.1481481481481481) internal successors, (93), 86 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:42:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2021-11-09 09:42:11,816 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 53 [2021-11-09 09:42:11,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:42:11,822 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2021-11-09 09:42:11,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 33 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:42:11,823 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2021-11-09 09:42:11,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-09 09:42:11,823 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:42:11,824 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:42:11,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:42:12,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-09 09:42:12,045 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:42:12,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:42:12,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1754933425, now seen corresponding path program 2 times [2021-11-09 09:42:12,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:42:12,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239909165] [2021-11-09 09:42:12,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:42:12,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:42:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:42:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:42:14,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:42:14,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239909165] [2021-11-09 09:42:14,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239909165] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:42:14,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417685107] [2021-11-09 09:42:14,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:42:14,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:42:14,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:42:14,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:42:14,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635096fc-7f35-41b2-ab09-d5a60327e3f5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process