./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8 --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 97e90b5866c6e9df01c589395fdbbe46254bc553e4330f2a669b393b022bbd71 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:31:38,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:31:38,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:31:38,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:31:38,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:31:38,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:31:38,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:31:38,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:31:38,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:31:38,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:31:38,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:31:38,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:31:38,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:31:38,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:31:38,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:31:38,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:31:38,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:31:38,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:31:38,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:31:38,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:31:38,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:31:38,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:31:38,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:31:38,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:31:38,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:31:38,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:31:38,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:31:38,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:31:38,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:31:38,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:31:38,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:31:38,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:31:38,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:31:38,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:31:38,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:31:38,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:31:38,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:31:38,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:31:38,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:31:38,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:31:38,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:31:38,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:31:38,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:31:38,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:31:38,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:31:38,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:31:38,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:31:38,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:31:38,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:31:38,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:31:38,888 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:31:38,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:31:38,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:31:38,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:31:38,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:31:38,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:31:38,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:31:38,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:31:38,890 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:31:38,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:31:38,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:31:38,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:31:38,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:31:38,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:31:38,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:31:38,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:31:38,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:31:38,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:31:38,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:31:38,893 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:31:38,893 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:31:38,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:31:38,893 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_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97e90b5866c6e9df01c589395fdbbe46254bc553e4330f2a669b393b022bbd71 [2022-11-16 12:31:39,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:31:39,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:31:39,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:31:39,249 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:31:39,250 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:31:39,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i [2022-11-16 12:31:39,314 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/data/3d9dbb6dd/de928abed33d485ea44badbc069646ce/FLAG1e0b6bde1 [2022-11-16 12:31:40,203 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:31:40,204 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i [2022-11-16 12:31:40,240 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/data/3d9dbb6dd/de928abed33d485ea44badbc069646ce/FLAG1e0b6bde1 [2022-11-16 12:31:40,678 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/data/3d9dbb6dd/de928abed33d485ea44badbc069646ce [2022-11-16 12:31:40,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:31:40,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:31:40,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:31:40,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:31:40,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:31:40,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:31:40" (1/1) ... [2022-11-16 12:31:40,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3528fcf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:40, skipping insertion in model container [2022-11-16 12:31:40,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:31:40" (1/1) ... [2022-11-16 12:31:40,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:31:40,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:31:41,177 WARN L229 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_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4495,4508] [2022-11-16 12:31:41,186 WARN L229 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_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4555,4568] [2022-11-16 12:31:42,205 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,207 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,209 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,210 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,213 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,238 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,247 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,249 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,253 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,255 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,256 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,257 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,258 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:42,846 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:31:42,849 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:31:42,852 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:31:42,853 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:31:42,855 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:31:42,856 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:31:42,856 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:31:42,857 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:31:42,869 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:31:42,870 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:31:43,156 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:31:43,657 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,660 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,700 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,701 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,707 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,707 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,724 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,725 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,726 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,726 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,727 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,727 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,728 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:31:43,827 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:31:43,853 WARN L229 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_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4495,4508] [2022-11-16 12:31:43,853 WARN L229 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_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4555,4568] [2022-11-16 12:31:43,885 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,885 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,886 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,886 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,887 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,892 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,893 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,894 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,894 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,895 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,896 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,896 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,896 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:43,936 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:31:43,941 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:31:43,942 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:31:43,944 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:31:43,945 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:31:43,946 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:31:43,946 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:31:43,947 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:31:43,947 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:31:43,948 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:31:43,982 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:31:44,124 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,125 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,133 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,134 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,137 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,137 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,154 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,155 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,155 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,156 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,156 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,156 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,157 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:31:44,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:31:44,516 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:31:44,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44 WrapperNode [2022-11-16 12:31:44,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:31:44,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:31:44,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:31:44,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:31:44,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (1/1) ... [2022-11-16 12:31:44,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (1/1) ... [2022-11-16 12:31:44,778 INFO L138 Inliner]: procedures = 775, calls = 2499, calls flagged for inlining = 69, calls inlined = 19, statements flattened = 1054 [2022-11-16 12:31:44,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:31:44,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:31:44,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:31:44,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:31:44,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (1/1) ... [2022-11-16 12:31:44,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (1/1) ... [2022-11-16 12:31:44,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (1/1) ... [2022-11-16 12:31:44,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (1/1) ... [2022-11-16 12:31:44,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (1/1) ... [2022-11-16 12:31:44,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (1/1) ... [2022-11-16 12:31:44,900 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (1/1) ... [2022-11-16 12:31:44,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (1/1) ... [2022-11-16 12:31:44,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:31:44,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:31:44,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:31:44,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:31:44,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (1/1) ... [2022-11-16 12:31:44,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:31:44,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:31:44,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:31:44,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:31:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-16 12:31:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-16 12:31:45,041 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-16 12:31:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:31:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-16 12:31:45,041 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-16 12:31:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 12:31:45,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 12:31:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-11-16 12:31:45,042 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-11-16 12:31:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:31:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:31:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:31:45,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:31:45,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:31:45,043 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 12:31:45,044 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 12:31:45,044 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-16 12:31:45,044 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-16 12:31:45,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:31:45,045 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-16 12:31:45,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-16 12:31:45,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:31:45,045 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-16 12:31:45,045 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-16 12:31:45,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:31:45,046 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2022-11-16 12:31:45,046 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2022-11-16 12:31:45,046 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-11-16 12:31:45,046 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-11-16 12:31:45,046 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-11-16 12:31:45,047 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-11-16 12:31:45,047 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2022-11-16 12:31:45,047 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2022-11-16 12:31:45,047 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2022-11-16 12:31:45,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2022-11-16 12:31:45,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:31:45,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-16 12:31:45,048 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-11-16 12:31:45,048 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-11-16 12:31:45,049 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:31:45,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:31:45,050 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2022-11-16 12:31:45,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2022-11-16 12:31:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2022-11-16 12:31:45,054 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2022-11-16 12:31:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2022-11-16 12:31:45,055 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2022-11-16 12:31:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:31:45,056 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:31:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-11-16 12:31:45,056 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-11-16 12:31:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:31:45,064 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-16 12:31:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-16 12:31:45,064 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-16 12:31:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-16 12:31:45,064 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-16 12:31:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-16 12:31:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2022-11-16 12:31:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2022-11-16 12:31:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-11-16 12:31:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-11-16 12:31:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2022-11-16 12:31:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2022-11-16 12:31:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 12:31:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 12:31:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:31:45,529 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:31:45,531 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:31:45,799 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !true; [2022-11-16 12:31:45,799 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !true; [2022-11-16 12:31:45,828 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2022-11-16 12:31:45,870 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2022-11-16 12:31:46,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !true; [2022-11-16 12:31:46,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2022-11-16 12:31:46,867 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:31:46,889 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:31:46,890 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-16 12:31:46,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:31:46 BoogieIcfgContainer [2022-11-16 12:31:46,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:31:46,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:31:46,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:31:46,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:31:46,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:31:40" (1/3) ... [2022-11-16 12:31:46,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69352542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:31:46, skipping insertion in model container [2022-11-16 12:31:46,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:44" (2/3) ... [2022-11-16 12:31:46,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69352542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:31:46, skipping insertion in model container [2022-11-16 12:31:46,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:31:46" (3/3) ... [2022-11-16 12:31:46,906 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_remove_harness.i [2022-11-16 12:31:46,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:31:46,926 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:31:47,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:31:47,046 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2e9d877, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:31:47,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:31:47,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 201 states have (on average 1.2338308457711442) internal successors, (248), 196 states have internal predecessors, (248), 87 states have call successors, (87), 27 states have call predecessors, (87), 27 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2022-11-16 12:31:47,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-16 12:31:47,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:47,070 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:47,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:31:47,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:47,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1105220161, now seen corresponding path program 1 times [2022-11-16 12:31:47,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:47,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030524147] [2022-11-16 12:31:47,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:47,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:47,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030524147] [2022-11-16 12:31:47,706 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-16 12:31:47,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140402252] [2022-11-16 12:31:47,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:47,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:31:47,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:31:47,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:31:47,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:31:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:48,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 2883 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:31:48,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-11-16 12:31:48,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:48,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140402252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:48,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:48,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:31:48,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749478011] [2022-11-16 12:31:48,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:48,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:31:48,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:48,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:31:48,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:31:48,798 INFO L87 Difference]: Start difference. First operand has 311 states, 201 states have (on average 1.2338308457711442) internal successors, (248), 196 states have internal predecessors, (248), 87 states have call successors, (87), 27 states have call predecessors, (87), 27 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-16 12:31:48,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:48,922 INFO L93 Difference]: Finished difference Result 616 states and 888 transitions. [2022-11-16 12:31:48,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:31:48,927 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 180 [2022-11-16 12:31:48,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:48,947 INFO L225 Difference]: With dead ends: 616 [2022-11-16 12:31:48,947 INFO L226 Difference]: Without dead ends: 303 [2022-11-16 12:31:48,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:31:48,969 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:48,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:31:48,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-11-16 12:31:49,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2022-11-16 12:31:49,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 188 states have (on average 1.202127659574468) internal successors, (226), 190 states have internal predecessors, (226), 87 states have call successors, (87), 27 states have call predecessors, (87), 27 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-16 12:31:49,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 398 transitions. [2022-11-16 12:31:49,076 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 398 transitions. Word has length 180 [2022-11-16 12:31:49,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:49,078 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 398 transitions. [2022-11-16 12:31:49,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-16 12:31:49,079 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 398 transitions. [2022-11-16 12:31:49,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-16 12:31:49,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:49,097 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:49,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 12:31:49,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 12:31:49,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:31:49,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:49,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1202525883, now seen corresponding path program 1 times [2022-11-16 12:31:49,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:49,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054503631] [2022-11-16 12:31:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:49,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:49,457 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:31:49,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641867123] [2022-11-16 12:31:49,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:49,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:31:49,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:31:49,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:31:49,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:31:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 2883 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:31:50,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:50,431 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2022-11-16 12:31:50,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:50,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:50,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054503631] [2022-11-16 12:31:50,435 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:31:50,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641867123] [2022-11-16 12:31:50,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641867123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:50,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:50,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:31:50,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053758269] [2022-11-16 12:31:50,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:50,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:31:50,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:50,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:31:50,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:31:50,440 INFO L87 Difference]: Start difference. First operand 303 states and 398 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-16 12:31:50,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:50,526 INFO L93 Difference]: Finished difference Result 569 states and 751 transitions. [2022-11-16 12:31:50,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:31:50,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 180 [2022-11-16 12:31:50,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:50,529 INFO L225 Difference]: With dead ends: 569 [2022-11-16 12:31:50,529 INFO L226 Difference]: Without dead ends: 308 [2022-11-16 12:31:50,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:31:50,531 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 2 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:50,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1575 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:31:50,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-11-16 12:31:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2022-11-16 12:31:50,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 192 states have (on average 1.1979166666666667) internal successors, (230), 194 states have internal predecessors, (230), 87 states have call successors, (87), 27 states have call predecessors, (87), 28 states have return successors, (86), 86 states have call predecessors, (86), 85 states have call successors, (86) [2022-11-16 12:31:50,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 403 transitions. [2022-11-16 12:31:50,551 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 403 transitions. Word has length 180 [2022-11-16 12:31:50,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:50,551 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 403 transitions. [2022-11-16 12:31:50,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-16 12:31:50,552 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 403 transitions. [2022-11-16 12:31:50,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-16 12:31:50,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:50,555 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:50,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:50,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:31:50,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:31:50,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:50,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1244562241, now seen corresponding path program 1 times [2022-11-16 12:31:50,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:50,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366049866] [2022-11-16 12:31:50,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:50,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:31:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:31:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:31:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:31:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:31:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:31:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:31:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:31:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:31:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:31:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:31:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:31:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:31:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:31:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:31:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:31:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:31:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:31:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:31:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:31:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:31:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-16 12:31:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-16 12:31:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:31:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-16 12:31:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-16 12:31:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:52,179 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-16 12:31:52,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:52,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366049866] [2022-11-16 12:31:52,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366049866] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:31:52,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367349942] [2022-11-16 12:31:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:52,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:31:52,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:31:52,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:31:52,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:31:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:53,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 2887 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:31:53,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:53,196 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-11-16 12:31:53,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:53,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367349942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:53,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:31:53,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-16 12:31:53,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037249338] [2022-11-16 12:31:53,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:53,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:31:53,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:53,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:31:53,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:31:53,200 INFO L87 Difference]: Start difference. First operand 308 states and 403 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 12:31:53,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:53,559 INFO L93 Difference]: Finished difference Result 562 states and 747 transitions. [2022-11-16 12:31:53,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:31:53,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 186 [2022-11-16 12:31:53,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:53,564 INFO L225 Difference]: With dead ends: 562 [2022-11-16 12:31:53,565 INFO L226 Difference]: Without dead ends: 315 [2022-11-16 12:31:53,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:31:53,567 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 420 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:53,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 971 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:31:53,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-11-16 12:31:53,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2022-11-16 12:31:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 197 states have (on average 1.1979695431472082) internal successors, (236), 200 states have internal predecessors, (236), 88 states have call successors, (88), 27 states have call predecessors, (88), 29 states have return successors, (90), 87 states have call predecessors, (90), 86 states have call successors, (90) [2022-11-16 12:31:53,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 414 transitions. [2022-11-16 12:31:53,611 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 414 transitions. Word has length 186 [2022-11-16 12:31:53,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:53,614 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 414 transitions. [2022-11-16 12:31:53,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 12:31:53,614 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 414 transitions. [2022-11-16 12:31:53,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-16 12:31:53,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:53,617 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:53,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:53,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-16 12:31:53,828 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:31:53,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:53,829 INFO L85 PathProgramCache]: Analyzing trace with hash -516455621, now seen corresponding path program 1 times [2022-11-16 12:31:53,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:53,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920813154] [2022-11-16 12:31:53,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:53,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:31:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:31:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:31:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:31:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:31:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:31:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:31:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:31:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:55,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:31:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:31:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:31:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:31:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:31:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:31:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:31:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:31:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:31:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:31:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:31:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:31:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:31:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-16 12:31:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-16 12:31:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:31:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-16 12:31:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-16 12:31:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-16 12:31:56,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:56,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920813154] [2022-11-16 12:31:56,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920813154] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:31:56,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489197554] [2022-11-16 12:31:56,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:56,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:31:56,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:31:56,219 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:31:56,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:31:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:57,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 2897 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:31:57,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-11-16 12:31:57,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:57,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489197554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:57,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:31:57,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-16 12:31:57,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391914328] [2022-11-16 12:31:57,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:57,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:31:57,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:57,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:31:57,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:31:57,307 INFO L87 Difference]: Start difference. First operand 315 states and 414 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-16 12:31:57,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:57,681 INFO L93 Difference]: Finished difference Result 535 states and 710 transitions. [2022-11-16 12:31:57,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:31:57,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) Word has length 186 [2022-11-16 12:31:57,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:57,685 INFO L225 Difference]: With dead ends: 535 [2022-11-16 12:31:57,685 INFO L226 Difference]: Without dead ends: 308 [2022-11-16 12:31:57,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:31:57,687 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 445 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:57,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1271 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:31:57,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-11-16 12:31:57,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2022-11-16 12:31:57,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 192 states have (on average 1.1927083333333333) internal successors, (229), 194 states have internal predecessors, (229), 87 states have call successors, (87), 27 states have call predecessors, (87), 28 states have return successors, (86), 86 states have call predecessors, (86), 85 states have call successors, (86) [2022-11-16 12:31:57,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 402 transitions. [2022-11-16 12:31:57,705 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 402 transitions. Word has length 186 [2022-11-16 12:31:57,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:57,706 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 402 transitions. [2022-11-16 12:31:57,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-16 12:31:57,707 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 402 transitions. [2022-11-16 12:31:57,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-16 12:31:57,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:57,710 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:57,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:57,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:31:57,920 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:31:57,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:57,920 INFO L85 PathProgramCache]: Analyzing trace with hash -764602115, now seen corresponding path program 1 times [2022-11-16 12:31:57,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:57,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940170496] [2022-11-16 12:31:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:57,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:31:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:31:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:31:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:31:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:31:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:31:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:31:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:31:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:31:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:31:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:31:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:31:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:31:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:31:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:31:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:31:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:31:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:31:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:31:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:31:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:31:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-16 12:31:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-16 12:31:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:31:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-16 12:31:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:59,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-16 12:31:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:00,005 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-16 12:32:00,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:00,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940170496] [2022-11-16 12:32:00,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940170496] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:00,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262974544] [2022-11-16 12:32:00,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:00,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:00,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:00,011 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:00,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:32:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:00,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 2902 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-16 12:32:00,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:01,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:32:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-11-16 12:32:01,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:01,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262974544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:01,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:32:01,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 21 [2022-11-16 12:32:01,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547689129] [2022-11-16 12:32:01,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:01,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:32:01,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:01,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:32:01,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:32:01,458 INFO L87 Difference]: Start difference. First operand 308 states and 402 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 9 states have internal predecessors, (77), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-16 12:32:01,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:01,864 INFO L93 Difference]: Finished difference Result 562 states and 739 transitions. [2022-11-16 12:32:01,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:32:01,864 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 9 states have internal predecessors, (77), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 186 [2022-11-16 12:32:01,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:01,867 INFO L225 Difference]: With dead ends: 562 [2022-11-16 12:32:01,867 INFO L226 Difference]: Without dead ends: 312 [2022-11-16 12:32:01,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:32:01,869 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 57 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 251 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:01,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 3123 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 155 Invalid, 0 Unknown, 251 Unchecked, 0.3s Time] [2022-11-16 12:32:01,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-11-16 12:32:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-11-16 12:32:01,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 196 states have (on average 1.1887755102040816) internal successors, (233), 197 states have internal predecessors, (233), 87 states have call successors, (87), 28 states have call predecessors, (87), 28 states have return successors, (86), 86 states have call predecessors, (86), 85 states have call successors, (86) [2022-11-16 12:32:01,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 406 transitions. [2022-11-16 12:32:01,888 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 406 transitions. Word has length 186 [2022-11-16 12:32:01,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:01,889 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 406 transitions. [2022-11-16 12:32:01,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 9 states have internal predecessors, (77), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-16 12:32:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 406 transitions. [2022-11-16 12:32:01,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-16 12:32:01,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:01,907 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:01,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-16 12:32:02,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:02,119 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:02,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1808291805, now seen corresponding path program 1 times [2022-11-16 12:32:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:02,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305598856] [2022-11-16 12:32:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:32:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:32:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:32:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:32:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:32:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:32:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:32:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:32:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:32:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:32:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:32:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:32:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:32:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:32:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:32:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:32:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:32:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-16 12:32:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:32:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:32:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:32:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 12:32:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-16 12:32:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-16 12:32:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 12:32:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:32:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-16 12:32:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:03,810 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2022-11-16 12:32:03,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:03,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305598856] [2022-11-16 12:32:03,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305598856] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:03,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052102742] [2022-11-16 12:32:03,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:03,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:03,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:03,812 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:03,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:32:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:04,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 2926 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 12:32:04,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:06,943 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true [2022-11-16 12:32:15,023 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:32:23,112 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:32:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-11-16 12:32:23,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:23,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052102742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:23,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:32:23,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-11-16 12:32:23,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267316200] [2022-11-16 12:32:23,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:23,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:32:23,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:23,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:32:23,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=175, Unknown=3, NotChecked=26, Total=240 [2022-11-16 12:32:23,148 INFO L87 Difference]: Start difference. First operand 312 states and 406 transitions. Second operand has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-16 12:32:23,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:23,599 INFO L93 Difference]: Finished difference Result 564 states and 747 transitions. [2022-11-16 12:32:23,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:32:23,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) Word has length 192 [2022-11-16 12:32:23,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:23,604 INFO L225 Difference]: With dead ends: 564 [2022-11-16 12:32:23,604 INFO L226 Difference]: Without dead ends: 315 [2022-11-16 12:32:23,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=51, Invalid=222, Unknown=3, NotChecked=30, Total=306 [2022-11-16 12:32:23,606 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 5 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 548 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:23,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2131 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 548 Unchecked, 0.3s Time] [2022-11-16 12:32:23,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-11-16 12:32:23,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 314. [2022-11-16 12:32:23,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 198 states have (on average 1.1868686868686869) internal successors, (235), 198 states have internal predecessors, (235), 87 states have call successors, (87), 29 states have call predecessors, (87), 28 states have return successors, (86), 86 states have call predecessors, (86), 85 states have call successors, (86) [2022-11-16 12:32:23,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 408 transitions. [2022-11-16 12:32:23,629 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 408 transitions. Word has length 192 [2022-11-16 12:32:23,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:23,629 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 408 transitions. [2022-11-16 12:32:23,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-16 12:32:23,630 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 408 transitions. [2022-11-16 12:32:23,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-16 12:32:23,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:23,633 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:23,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:23,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:23,857 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:23,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1113017968, now seen corresponding path program 1 times [2022-11-16 12:32:23,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:23,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719859659] [2022-11-16 12:32:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:23,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:32:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:32:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:32:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:32:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:32:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:32:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:32:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:32:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:32:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:32:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:32:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:32:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:32:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:32:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:32:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:32:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:32:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:32:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:32:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:32:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:32:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:32:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:32:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 12:32:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:32:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-16 12:32:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-16 12:32:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:25,279 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2022-11-16 12:32:25,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:25,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719859659] [2022-11-16 12:32:25,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719859659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:25,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:25,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:32:25,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387372921] [2022-11-16 12:32:25,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:25,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:32:25,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:25,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:32:25,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:32:25,282 INFO L87 Difference]: Start difference. First operand 314 states and 408 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-16 12:32:27,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:27,316 INFO L93 Difference]: Finished difference Result 535 states and 706 transitions. [2022-11-16 12:32:27,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:32:27,316 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 197 [2022-11-16 12:32:27,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:27,320 INFO L225 Difference]: With dead ends: 535 [2022-11-16 12:32:27,320 INFO L226 Difference]: Without dead ends: 328 [2022-11-16 12:32:27,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:32:27,323 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 338 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:27,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 775 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:32:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-11-16 12:32:27,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 316. [2022-11-16 12:32:27,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 199 states have (on average 1.185929648241206) internal successors, (236), 200 states have internal predecessors, (236), 87 states have call successors, (87), 29 states have call predecessors, (87), 29 states have return successors, (92), 86 states have call predecessors, (92), 85 states have call successors, (92) [2022-11-16 12:32:27,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 415 transitions. [2022-11-16 12:32:27,356 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 415 transitions. Word has length 197 [2022-11-16 12:32:27,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:27,357 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 415 transitions. [2022-11-16 12:32:27,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-16 12:32:27,358 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 415 transitions. [2022-11-16 12:32:27,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-16 12:32:27,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:27,361 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:27,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:32:27,362 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:27,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:27,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1765514639, now seen corresponding path program 1 times [2022-11-16 12:32:27,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:27,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660123218] [2022-11-16 12:32:27,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:27,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:29,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:29,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:32:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:29,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:32:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:29,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:32:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:29,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:32:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:29,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:29,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:32:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:29,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:32:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:29,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:32:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:32:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:32:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:32:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:32:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:32:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:32:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:32:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:32:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:32:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:32:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:32:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:32:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:32:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:32:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:32:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:32:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 12:32:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:32:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-16 12:32:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-16 12:32:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:30,826 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-11-16 12:32:30,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:30,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660123218] [2022-11-16 12:32:30,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660123218] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:30,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201465404] [2022-11-16 12:32:30,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:30,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:30,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:30,829 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:30,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 12:32:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:31,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 2986 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-16 12:32:31,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:32,148 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-11-16 12:32:32,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:32:32,464 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-16 12:32:32,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201465404] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:32,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:32:32,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17, 8] total 25 [2022-11-16 12:32:32,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098507908] [2022-11-16 12:32:32,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:32,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:32:32,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:32,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:32:32,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=546, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:32:32,467 INFO L87 Difference]: Start difference. First operand 316 states and 415 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2022-11-16 12:32:32,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:32,579 INFO L93 Difference]: Finished difference Result 324 states and 422 transitions. [2022-11-16 12:32:32,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:32:32,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 202 [2022-11-16 12:32:32,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:32,583 INFO L225 Difference]: With dead ends: 324 [2022-11-16 12:32:32,583 INFO L226 Difference]: Without dead ends: 322 [2022-11-16 12:32:32,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-11-16 12:32:32,585 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 13 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:32,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1552 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:32:32,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-11-16 12:32:32,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 320. [2022-11-16 12:32:32,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 202 states have (on average 1.183168316831683) internal successors, (239), 203 states have internal predecessors, (239), 87 states have call successors, (87), 30 states have call predecessors, (87), 30 states have return successors, (92), 86 states have call predecessors, (92), 85 states have call successors, (92) [2022-11-16 12:32:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 418 transitions. [2022-11-16 12:32:32,633 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 418 transitions. Word has length 202 [2022-11-16 12:32:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:32,636 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 418 transitions. [2022-11-16 12:32:32,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2022-11-16 12:32:32,636 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 418 transitions. [2022-11-16 12:32:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-16 12:32:32,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:32,642 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:32,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:32,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:32,863 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:32,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:32,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1984772042, now seen corresponding path program 1 times [2022-11-16 12:32:32,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:32,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546749072] [2022-11-16 12:32:32,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:32,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:32:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:32:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:32:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:32:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:32:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:32:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:32:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:32:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:32:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:32:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:32:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:32:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:32:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:32:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:32:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:32:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:32:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:32:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:32:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:32:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:32:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:36,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:32:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:32:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:36,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 12:32:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:36,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:32:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:36,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-16 12:32:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:36,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:36,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-16 12:32:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-16 12:32:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:36,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-16 12:32:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-11-16 12:32:36,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:36,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546749072] [2022-11-16 12:32:36,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546749072] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:36,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614868926] [2022-11-16 12:32:36,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:36,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:36,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:36,354 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:36,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 12:32:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:37,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 3017 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 12:32:37,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:37,764 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 29 proven. 15 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-11-16 12:32:37,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:32:38,072 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-16 12:32:38,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614868926] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:38,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:32:38,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17, 8] total 25 [2022-11-16 12:32:38,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871543380] [2022-11-16 12:32:38,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:38,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:32:38,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:38,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:32:38,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=546, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:32:38,076 INFO L87 Difference]: Start difference. First operand 320 states and 418 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2022-11-16 12:32:38,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:38,188 INFO L93 Difference]: Finished difference Result 328 states and 425 transitions. [2022-11-16 12:32:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:32:38,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 215 [2022-11-16 12:32:38,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:38,192 INFO L225 Difference]: With dead ends: 328 [2022-11-16 12:32:38,192 INFO L226 Difference]: Without dead ends: 326 [2022-11-16 12:32:38,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 487 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-11-16 12:32:38,194 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 6 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:38,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1563 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:32:38,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-11-16 12:32:38,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 324. [2022-11-16 12:32:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 205 states have (on average 1.1804878048780487) internal successors, (242), 206 states have internal predecessors, (242), 87 states have call successors, (87), 31 states have call predecessors, (87), 31 states have return successors, (92), 86 states have call predecessors, (92), 85 states have call successors, (92) [2022-11-16 12:32:38,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 421 transitions. [2022-11-16 12:32:38,227 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 421 transitions. Word has length 215 [2022-11-16 12:32:38,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:38,228 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 421 transitions. [2022-11-16 12:32:38,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2022-11-16 12:32:38,228 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 421 transitions. [2022-11-16 12:32:38,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-16 12:32:38,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:38,232 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:38,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:38,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:38,453 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:38,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:38,454 INFO L85 PathProgramCache]: Analyzing trace with hash 971974759, now seen corresponding path program 1 times [2022-11-16 12:32:38,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:38,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106325128] [2022-11-16 12:32:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:38,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:40,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:40,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:32:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:40,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:32:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:40,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:32:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:40,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:32:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:40,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:40,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:40,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:32:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:40,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:32:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:32:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:32:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:32:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:32:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:32:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:32:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:32:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:32:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:32:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:32:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:32:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:32:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:32:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:32:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:32:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:32:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:32:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 12:32:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:32:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 12:32:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:41,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:42,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:32:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:42,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-16 12:32:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:42,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-11-16 12:32:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-11-16 12:32:42,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:42,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106325128] [2022-11-16 12:32:42,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106325128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:42,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205055306] [2022-11-16 12:32:42,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:42,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:42,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:42,192 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:42,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 12:32:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:43,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 3139 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 12:32:43,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-16 12:32:43,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:43,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205055306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:43,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:32:43,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-11-16 12:32:43,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615869638] [2022-11-16 12:32:43,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:43,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:32:43,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:43,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:32:43,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2022-11-16 12:32:43,489 INFO L87 Difference]: Start difference. First operand 324 states and 421 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-16 12:32:43,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:43,611 INFO L93 Difference]: Finished difference Result 464 states and 602 transitions. [2022-11-16 12:32:43,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:32:43,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 223 [2022-11-16 12:32:43,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:43,615 INFO L225 Difference]: With dead ends: 464 [2022-11-16 12:32:43,615 INFO L226 Difference]: Without dead ends: 324 [2022-11-16 12:32:43,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:32:43,617 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 32 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:43,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1141 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:32:43,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-11-16 12:32:43,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2022-11-16 12:32:43,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 205 states have (on average 1.170731707317073) internal successors, (240), 206 states have internal predecessors, (240), 87 states have call successors, (87), 31 states have call predecessors, (87), 31 states have return successors, (92), 86 states have call predecessors, (92), 85 states have call successors, (92) [2022-11-16 12:32:43,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 419 transitions. [2022-11-16 12:32:43,646 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 419 transitions. Word has length 223 [2022-11-16 12:32:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:43,647 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 419 transitions. [2022-11-16 12:32:43,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-16 12:32:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 419 transitions. [2022-11-16 12:32:43,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-16 12:32:43,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:43,652 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:43,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:43,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 12:32:43,864 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:43,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:43,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1022169947, now seen corresponding path program 1 times [2022-11-16 12:32:43,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:43,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422689486] [2022-11-16 12:32:43,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:43,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:32:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:32:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:32:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:32:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:32:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:32:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:32:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:32:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:32:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:32:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:32:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:32:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:32:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:32:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:32:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:32:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:32:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:32:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:32:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:32:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:32:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:32:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:32:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 12:32:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:32:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 12:32:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:47,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:47,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:32:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:47,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-16 12:32:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:47,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-11-16 12:32:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:47,391 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-11-16 12:32:47,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:47,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422689486] [2022-11-16 12:32:47,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422689486] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:47,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725326801] [2022-11-16 12:32:47,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:47,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:47,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:47,394 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:47,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 12:32:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:48,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 3126 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-16 12:32:48,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:48,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:33:32,381 WARN L855 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_45| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_45|) 0))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_45|) (not (= .cse0 0))))) is different from true [2022-11-16 12:33:34,559 WARN L855 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_46| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_46|) 0))) (and (not (= .cse0 0)) (<= (+ .cse0 2) |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_46|)))) is different from true [2022-11-16 12:33:34,698 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 12:33:34,698 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 29 [2022-11-16 12:33:36,786 WARN L855 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_47| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_47|) 0))) (and (not (= .cse0 0)) (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_47|)))) is different from true [2022-11-16 12:33:37,125 INFO L321 Elim1Store]: treesize reduction 168, result has 13.4 percent of original size [2022-11-16 12:33:37,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 331 treesize of output 506 [2022-11-16 12:33:37,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:33:37,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:33:37,259 INFO L321 Elim1Store]: treesize reduction 181, result has 7.7 percent of original size [2022-11-16 12:33:37,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 678 treesize of output 932 [2022-11-16 12:33:37,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 982 treesize of output 910 [2022-11-16 12:33:37,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 19 [2022-11-16 12:33:38,983 INFO L321 Elim1Store]: treesize reduction 223, result has 24.9 percent of original size [2022-11-16 12:33:38,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 1499 treesize of output 1332 [2022-11-16 12:33:39,613 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:33:39,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 179 [2022-11-16 12:33:40,142 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((v_DerPreprocessor_7 Int) (v_arrayElimCell_14 Int) (v_DerPreprocessor_8 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| v_DerPreprocessor_7 v_DerPreprocessor_8) v_arrayElimCell_14 (select |c_#memory_$Pointer$.base| v_arrayElimCell_14)))) (let ((.cse0 (select (select .cse1 0) 0))) (and (<= (+ 2 .cse0) 0) (= v_DerPreprocessor_7 .cse0) (= (select .cse1 .cse0) v_DerPreprocessor_8))))) (exists ((v_DerPreprocessor_7 Int) (v_arrayElimCell_14 Int) (v_DerPreprocessor_8 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_$Pointer$.base| v_DerPreprocessor_7 v_DerPreprocessor_8) v_arrayElimCell_14 (select |c_#memory_$Pointer$.base| v_arrayElimCell_14)))) (let ((.cse2 (select (select .cse3 |#funAddr~hash_proof_destroy_noop.base|) 0))) (and (<= (+ .cse2 2) |#funAddr~hash_proof_destroy_noop.base|) (= .cse2 v_DerPreprocessor_7) (= (select .cse3 .cse2) v_DerPreprocessor_8))))) (exists ((|v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_48| Int) (v_DerPreprocessor_7 Int) (v_arrayElimCell_14 Int) (v_DerPreprocessor_8 (Array Int Int))) (let ((.cse6 (store (store |c_#memory_$Pointer$.base| v_DerPreprocessor_7 v_DerPreprocessor_8) v_arrayElimCell_14 (select |c_#memory_$Pointer$.base| v_arrayElimCell_14)))) (let ((.cse4 (select (select .cse6 |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_48|) 0))) (let ((.cse5 (select .cse6 .cse4))) (and (= (select |c_#memory_$Pointer$.base| .cse4) .cse5) (= .cse4 v_DerPreprocessor_7) (not (= .cse4 0)) (= .cse5 v_DerPreprocessor_8) (<= (+ .cse4 2) |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_48|))))))) is different from true [2022-11-16 12:33:41,700 INFO L321 Elim1Store]: treesize reduction 534, result has 25.3 percent of original size [2022-11-16 12:33:41,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 15 new quantified variables, introduced 65 case distinctions, treesize of input 2704 treesize of output 2467 [2022-11-16 12:33:45,676 WARN L855 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_49| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_49|) 0))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_49|) (not (= .cse0 0))))) is different from true [2022-11-16 12:34:14,128 WARN L855 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_51| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_51|) 0))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_remove_harness_~#map~0#1.base_BEFORE_CALL_51|) (not (= .cse0 0))))) is different from true [2022-11-16 12:34:14,250 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 12:34:14,251 INFO L350 Elim1Store]: Elim1 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 24 treesize of output 28 [2022-11-16 12:34:14,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 12:34:21,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 12:34:21,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 12:34:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 196 proven. 42 refuted. 35 times theorem prover too weak. 123 trivial. 87 not checked. [2022-11-16 12:34:22,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:34:26,665 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-16 12:34:26,666 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-11-16 12:34:28,851 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-11-16 12:34:28,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725326801] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:34:28,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:34:28,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 29, 13] total 41 [2022-11-16 12:34:28,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077806438] [2022-11-16 12:34:28,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:34:28,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-16 12:34:28,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:34:28,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-16 12:34:28,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1070, Unknown=33, NotChecked=426, Total=1640 [2022-11-16 12:34:28,854 INFO L87 Difference]: Start difference. First operand 324 states and 419 transitions. Second operand has 41 states, 38 states have (on average 4.684210526315789) internal successors, (178), 36 states have internal predecessors, (178), 19 states have call successors, (73), 14 states have call predecessors, (73), 14 states have return successors, (66), 17 states have call predecessors, (66), 19 states have call successors, (66) [2022-11-16 12:35:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:35:29,936 INFO L93 Difference]: Finished difference Result 622 states and 829 transitions. [2022-11-16 12:35:29,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-16 12:35:29,937 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 38 states have (on average 4.684210526315789) internal successors, (178), 36 states have internal predecessors, (178), 19 states have call successors, (73), 14 states have call predecessors, (73), 14 states have return successors, (66), 17 states have call predecessors, (66), 19 states have call successors, (66) Word has length 223 [2022-11-16 12:35:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:35:29,939 INFO L225 Difference]: With dead ends: 622 [2022-11-16 12:35:29,940 INFO L226 Difference]: Without dead ends: 408 [2022-11-16 12:35:29,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 468 SyntacticMatches, 29 SemanticMatches, 61 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 909 ImplicationChecksByTransitivity, 148.5s TimeCoverageRelationStatistics Valid=275, Invalid=2891, Unknown=50, NotChecked=690, Total=3906 [2022-11-16 12:35:29,942 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 449 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 5597 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 9558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 5597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3629 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:35:29,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 2079 Invalid, 9558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 5597 Invalid, 0 Unknown, 3629 Unchecked, 4.9s Time] [2022-11-16 12:35:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-11-16 12:35:29,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 345. [2022-11-16 12:35:29,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 219 states have (on average 1.1598173515981736) internal successors, (254), 222 states have internal predecessors, (254), 89 states have call successors, (89), 34 states have call predecessors, (89), 36 states have return successors, (97), 88 states have call predecessors, (97), 87 states have call successors, (97) [2022-11-16 12:35:29,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 440 transitions. [2022-11-16 12:35:29,971 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 440 transitions. Word has length 223 [2022-11-16 12:35:29,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:35:29,972 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 440 transitions. [2022-11-16 12:35:29,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 38 states have (on average 4.684210526315789) internal successors, (178), 36 states have internal predecessors, (178), 19 states have call successors, (73), 14 states have call predecessors, (73), 14 states have return successors, (66), 17 states have call predecessors, (66), 19 states have call successors, (66) [2022-11-16 12:35:29,973 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 440 transitions. [2022-11-16 12:35:29,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-16 12:35:29,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:35:29,977 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:35:29,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 12:35:30,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:35:30,189 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:35:30,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:30,189 INFO L85 PathProgramCache]: Analyzing trace with hash 271023937, now seen corresponding path program 2 times [2022-11-16 12:35:30,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:30,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202194730] [2022-11-16 12:35:30,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:30,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:35:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:50,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:35:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:50,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:35:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:50,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:35:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:50,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:35:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:35:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:35:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:35:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:35:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:35:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:35:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:35:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:35:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:35:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:35:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:35:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:35:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:35:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:35:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:35:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:35:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:35:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:35:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:35:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:35:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:35:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:35:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 12:35:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 12:35:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:35:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:35:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 12:35:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:35:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-16 12:35:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-16 12:35:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:35:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:35:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:35:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:51,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-16 12:35:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:52,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-16 12:35:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:52,336 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2022-11-16 12:35:52,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:52,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202194730] [2022-11-16 12:35:52,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202194730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:52,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:52,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-11-16 12:35:52,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455446890] [2022-11-16 12:35:52,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:52,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-16 12:35:52,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:52,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-16 12:35:52,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=962, Unknown=0, NotChecked=0, Total=1056 [2022-11-16 12:35:52,339 INFO L87 Difference]: Start difference. First operand 345 states and 440 transitions. Second operand has 33 states, 30 states have (on average 2.8) internal successors, (84), 28 states have internal predecessors, (84), 17 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (35), 17 states have call predecessors, (35), 16 states have call successors, (35) [2022-11-16 12:36:00,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:36:00,823 INFO L93 Difference]: Finished difference Result 467 states and 602 transitions. [2022-11-16 12:36:00,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-16 12:36:00,824 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 30 states have (on average 2.8) internal successors, (84), 28 states have internal predecessors, (84), 17 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (35), 17 states have call predecessors, (35), 16 states have call successors, (35) Word has length 245 [2022-11-16 12:36:00,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:36:00,827 INFO L225 Difference]: With dead ends: 467 [2022-11-16 12:36:00,827 INFO L226 Difference]: Without dead ends: 396 [2022-11-16 12:36:00,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=389, Invalid=3271, Unknown=0, NotChecked=0, Total=3660 [2022-11-16 12:36:00,829 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 811 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 7185 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 7797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 7185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:36:00,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1481 Invalid, 7797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 7185 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-16 12:36:00,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-11-16 12:36:00,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 351. [2022-11-16 12:36:00,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 222 states have (on average 1.162162162162162) internal successors, (258), 227 states have internal predecessors, (258), 91 states have call successors, (91), 34 states have call predecessors, (91), 37 states have return successors, (101), 89 states have call predecessors, (101), 89 states have call successors, (101) [2022-11-16 12:36:00,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 450 transitions. [2022-11-16 12:36:00,866 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 450 transitions. Word has length 245 [2022-11-16 12:36:00,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:36:00,866 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 450 transitions. [2022-11-16 12:36:00,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 30 states have (on average 2.8) internal successors, (84), 28 states have internal predecessors, (84), 17 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (35), 17 states have call predecessors, (35), 16 states have call successors, (35) [2022-11-16 12:36:00,867 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 450 transitions. [2022-11-16 12:36:00,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-16 12:36:00,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:36:00,869 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:00,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:36:00,870 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:36:00,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:00,870 INFO L85 PathProgramCache]: Analyzing trace with hash 489878655, now seen corresponding path program 1 times [2022-11-16 12:36:00,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:00,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347742668] [2022-11-16 12:36:00,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:00,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:36:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:36:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:36:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:36:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:36:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:36:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:36:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:36:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:36:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:36:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:36:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:36:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:36:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:36:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:36:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:36:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:36:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:36:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:36:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:36:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:36:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:36:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:17,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:36:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:36:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:36:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:36:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:36:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 12:36:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 12:36:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:36:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:36:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 12:36:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:36:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-16 12:36:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-16 12:36:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:36:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:36:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:36:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-16 12:36:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:18,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-16 12:36:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-11-16 12:36:19,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:19,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347742668] [2022-11-16 12:36:19,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347742668] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:36:19,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91974554] [2022-11-16 12:36:19,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:19,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:36:19,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:36:19,097 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:36:19,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 12:36:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:20,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 3227 conjuncts, 276 conjunts are in the unsatisfiable core [2022-11-16 12:36:20,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:36:20,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-16 12:36:21,864 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 12:36:21,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 12:36:21,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 12:36:22,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 12:36:22,612 INFO L321 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-11-16 12:36:22,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 53 [2022-11-16 12:36:22,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 12:36:23,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:36:23,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-16 12:36:23,157 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-16 12:36:23,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-11-16 12:36:23,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:36:24,706 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 12:36:24,707 INFO L350 Elim1Store]: Elim1 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 36 treesize of output 35 [2022-11-16 12:36:24,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:36:24,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 12:36:25,799 INFO L321 Elim1Store]: treesize reduction 347, result has 10.8 percent of original size [2022-11-16 12:36:25,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 12 new quantified variables, introduced 13 case distinctions, treesize of input 1398 treesize of output 1481 [2022-11-16 12:36:25,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:36:25,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:36:26,054 INFO L321 Elim1Store]: treesize reduction 314, result has 1.6 percent of original size [2022-11-16 12:36:26,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 12 case distinctions, treesize of input 1801 treesize of output 1804 [2022-11-16 12:36:26,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:36:26,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:36:26,330 INFO L321 Elim1Store]: treesize reduction 66, result has 38.3 percent of original size [2022-11-16 12:36:26,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1473 treesize of output 1581 [2022-11-16 12:36:26,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:36:26,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:36:26,680 INFO L321 Elim1Store]: treesize reduction 36, result has 48.6 percent of original size [2022-11-16 12:36:26,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 1017 treesize of output 1590 [2022-11-16 12:36:27,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 546 treesize of output 526 [2022-11-16 12:36:27,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 508 treesize of output 475 [2022-11-16 12:36:29,926 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-16 12:36:29,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 12:36:30,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 12:36:30,128 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 12:36:30,131 INFO L158 Benchmark]: Toolchain (without parser) took 289447.96ms. Allocated memory was 111.1MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 63.2MB in the beginning and 1.1GB in the end (delta: -1.1GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2022-11-16 12:36:30,131 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:36:30,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3830.68ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 62.9MB in the beginning and 67.5MB in the end (delta: -4.6MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. [2022-11-16 12:36:30,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 261.04ms. Allocated memory is still 140.5MB. Free memory was 67.5MB in the beginning and 54.2MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:36:30,132 INFO L158 Benchmark]: Boogie Preprocessor took 158.98ms. Allocated memory is still 140.5MB. Free memory was 54.2MB in the beginning and 44.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:36:30,132 INFO L158 Benchmark]: RCFGBuilder took 1953.71ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 44.5MB in the beginning and 116.4MB in the end (delta: -71.9MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2022-11-16 12:36:30,133 INFO L158 Benchmark]: TraceAbstraction took 283234.03ms. Allocated memory was 195.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 115.4MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2022-11-16 12:36:30,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3830.68ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 62.9MB in the beginning and 67.5MB in the end (delta: -4.6MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 261.04ms. Allocated memory is still 140.5MB. Free memory was 67.5MB in the beginning and 54.2MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 158.98ms. Allocated memory is still 140.5MB. Free memory was 54.2MB in the beginning and 44.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1953.71ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 44.5MB in the beginning and 116.4MB in the end (delta: -71.9MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * TraceAbstraction took 283234.03ms. Allocated memory was 195.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 115.4MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-16 12:36:30,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8 --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 97e90b5866c6e9df01c589395fdbbe46254bc553e4330f2a669b393b022bbd71 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:36:32,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:36:32,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:36:32,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:36:32,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:36:32,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:36:32,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:36:32,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:36:32,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:36:32,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:36:32,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:36:32,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:36:32,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:36:32,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:36:32,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:36:32,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:36:32,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:36:32,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:36:32,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:36:32,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:36:32,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:36:32,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:36:32,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:36:32,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:36:32,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:36:32,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:36:32,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:36:32,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:36:32,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:36:32,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:36:32,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:36:32,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:36:32,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:36:32,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:36:32,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:36:32,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:36:32,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:36:32,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:36:32,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:36:32,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:36:32,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:36:32,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 12:36:32,644 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:36:32,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:36:32,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:36:32,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:36:32,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:36:32,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:36:32,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:36:32,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:36:32,649 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:36:32,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:36:32,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:36:32,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:36:32,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:36:32,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:36:32,651 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:36:32,652 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:36:32,652 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:36:32,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:36:32,652 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:36:32,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:36:32,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:36:32,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:36:32,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:36:32,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:36:32,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:36:32,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:36:32,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:36:32,655 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:36:32,655 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:36:32,655 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:36:32,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:36:32,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:36:32,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:36:32,656 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97e90b5866c6e9df01c589395fdbbe46254bc553e4330f2a669b393b022bbd71 [2022-11-16 12:36:33,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:36:33,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:36:33,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:36:33,065 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:36:33,066 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:36:33,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i [2022-11-16 12:36:33,137 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/data/8832cf119/dba7a76d6a6b464e8af069d35a2c223f/FLAG9ee24f0b3 [2022-11-16 12:36:34,067 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:36:34,069 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i [2022-11-16 12:36:34,108 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/data/8832cf119/dba7a76d6a6b464e8af069d35a2c223f/FLAG9ee24f0b3 [2022-11-16 12:36:34,541 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/data/8832cf119/dba7a76d6a6b464e8af069d35a2c223f [2022-11-16 12:36:34,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:36:34,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:36:34,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:36:34,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:36:34,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:36:34,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:36:34" (1/1) ... [2022-11-16 12:36:34,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3074e91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:34, skipping insertion in model container [2022-11-16 12:36:34,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:36:34" (1/1) ... [2022-11-16 12:36:34,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:36:34,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:36:35,051 WARN L229 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_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4495,4508] [2022-11-16 12:36:35,060 WARN L229 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_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4555,4568] [2022-11-16 12:36:36,623 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,628 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,629 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,630 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,632 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,647 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,648 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,649 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,650 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,652 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,653 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,653 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:36,654 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,205 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:36:37,210 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:36:37,212 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:36:37,216 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:36:37,219 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:36:37,220 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:36:37,220 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:36:37,221 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:36:37,222 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:36:37,222 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:36:37,421 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:36:37,775 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,776 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,817 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,818 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,823 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,824 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,838 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,839 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,840 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,840 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,841 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,841 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,842 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:37,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:36:37,957 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-16 12:36:38,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:36:38,036 WARN L229 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_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4495,4508] [2022-11-16 12:36:38,037 WARN L229 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_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4555,4568] [2022-11-16 12:36:38,094 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,094 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,095 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,095 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,096 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,107 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,107 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,108 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,109 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,110 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,110 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,110 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,111 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,162 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:36:38,165 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:36:38,167 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:36:38,167 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:36:38,168 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:36:38,169 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:36:38,169 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:36:38,170 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:36:38,170 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:36:38,170 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:36:38,195 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:36:38,322 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,323 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,330 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,331 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,333 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,334 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,346 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,346 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,348 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,348 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,348 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,349 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,349 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:36:38,407 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:36:38,431 WARN L229 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_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4495,4508] [2022-11-16 12:36:38,432 WARN L229 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_f6321185-8f4e-434d-b7a7-eb8a795fe441/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4555,4568] [2022-11-16 12:36:38,484 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,484 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,485 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,485 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,499 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,504 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,504 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,505 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,519 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,520 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,521 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,522 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,523 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,582 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:36:38,587 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:36:38,588 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:36:38,589 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:36:38,590 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:36:38,590 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:36:38,591 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:36:38,591 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:36:38,591 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:36:38,592 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:36:38,609 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:36:38,723 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,724 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,732 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,733 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,737 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,737 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,749 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,750 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,751 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,751 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,751 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,752 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,752 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:36:38,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:36:39,173 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:36:39,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39 WrapperNode [2022-11-16 12:36:39,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:36:39,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:36:39,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:36:39,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:36:39,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (1/1) ... [2022-11-16 12:36:39,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (1/1) ... [2022-11-16 12:36:39,413 INFO L138 Inliner]: procedures = 795, calls = 2499, calls flagged for inlining = 71, calls inlined = 18, statements flattened = 1042 [2022-11-16 12:36:39,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:36:39,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:36:39,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:36:39,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:36:39,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (1/1) ... [2022-11-16 12:36:39,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (1/1) ... [2022-11-16 12:36:39,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (1/1) ... [2022-11-16 12:36:39,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (1/1) ... [2022-11-16 12:36:39,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (1/1) ... [2022-11-16 12:36:39,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (1/1) ... [2022-11-16 12:36:39,560 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (1/1) ... [2022-11-16 12:36:39,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (1/1) ... [2022-11-16 12:36:39,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:36:39,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:36:39,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:36:39,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:36:39,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (1/1) ... [2022-11-16 12:36:39,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:36:39,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:36:39,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:36:39,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:36:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-16 12:36:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-16 12:36:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-16 12:36:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-16 12:36:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-16 12:36:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 12:36:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 12:36:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-11-16 12:36:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-11-16 12:36:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:36:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:36:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:36:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:36:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:36:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 12:36:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 12:36:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-16 12:36:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-16 12:36:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:36:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:36:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-16 12:36:39,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-16 12:36:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:36:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-16 12:36:39,756 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-16 12:36:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2022-11-16 12:36:39,757 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2022-11-16 12:36:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-16 12:36:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-11-16 12:36:39,757 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-11-16 12:36:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-11-16 12:36:39,757 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-11-16 12:36:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2022-11-16 12:36:39,758 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2022-11-16 12:36:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2022-11-16 12:36:39,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2022-11-16 12:36:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:36:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:36:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-16 12:36:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-11-16 12:36:39,759 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-11-16 12:36:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:36:39,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:36:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2022-11-16 12:36:39,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2022-11-16 12:36:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2022-11-16 12:36:39,760 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2022-11-16 12:36:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-16 12:36:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 12:36:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2022-11-16 12:36:39,760 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2022-11-16 12:36:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:36:39,760 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:36:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-16 12:36:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 12:36:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-11-16 12:36:39,761 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-11-16 12:36:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:36:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-16 12:36:39,762 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-16 12:36:39,762 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-16 12:36:39,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-16 12:36:39,762 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-16 12:36:39,762 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-16 12:36:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2022-11-16 12:36:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2022-11-16 12:36:39,763 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2022-11-16 12:36:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-11-16 12:36:39,763 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-11-16 12:36:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2022-11-16 12:36:39,763 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2022-11-16 12:36:40,344 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:36:40,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:36:41,002 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !true; [2022-11-16 12:36:41,003 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !true; [2022-11-16 12:36:41,061 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2022-11-16 12:36:41,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2022-11-16 12:36:46,082 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !true; [2022-11-16 12:36:46,083 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2022-11-16 12:36:46,147 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:36:46,164 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:36:46,164 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-16 12:36:46,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:36:46 BoogieIcfgContainer [2022-11-16 12:36:46,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:36:46,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:36:46,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:36:46,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:36:46,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:36:34" (1/3) ... [2022-11-16 12:36:46,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46841b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:36:46, skipping insertion in model container [2022-11-16 12:36:46,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:39" (2/3) ... [2022-11-16 12:36:46,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46841b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:36:46, skipping insertion in model container [2022-11-16 12:36:46,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:36:46" (3/3) ... [2022-11-16 12:36:46,182 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_remove_harness.i [2022-11-16 12:36:46,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:36:46,203 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:36:46,300 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:36:46,308 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@562c8f97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:36:46,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:36:46,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 297 states, 191 states have (on average 1.2408376963350785) internal successors, (237), 186 states have internal predecessors, (237), 84 states have call successors, (84), 26 states have call predecessors, (84), 26 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2022-11-16 12:36:46,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-16 12:36:46,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:36:46,335 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:46,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:36:46,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:46,343 INFO L85 PathProgramCache]: Analyzing trace with hash 210185344, now seen corresponding path program 1 times [2022-11-16 12:36:46,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:36:46,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553033470] [2022-11-16 12:36:46,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:46,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:36:46,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:36:46,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:36:46,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 12:36:47,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 139 [2022-11-16 12:36:47,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:36:47,932 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-16 12:36:47,936 INFO L158 Benchmark]: Toolchain (without parser) took 13390.43ms. Allocated memory was 58.7MB in the beginning and 306.2MB in the end (delta: 247.5MB). Free memory was 26.7MB in the beginning and 131.9MB in the end (delta: -105.3MB). Peak memory consumption was 141.6MB. Max. memory is 16.1GB. [2022-11-16 12:36:47,936 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:36:47,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4622.88ms. Allocated memory was 58.7MB in the beginning and 153.1MB in the end (delta: 94.4MB). Free memory was 26.5MB in the beginning and 71.3MB in the end (delta: -44.8MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. [2022-11-16 12:36:47,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 239.02ms. Allocated memory is still 153.1MB. Free memory was 71.3MB in the beginning and 58.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:36:47,939 INFO L158 Benchmark]: Boogie Preprocessor took 191.49ms. Allocated memory is still 153.1MB. Free memory was 58.7MB in the beginning and 47.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:36:47,939 INFO L158 Benchmark]: RCFGBuilder took 6561.20ms. Allocated memory was 153.1MB in the beginning and 306.2MB in the end (delta: 153.1MB). Free memory was 47.2MB in the beginning and 107.7MB in the end (delta: -60.6MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. [2022-11-16 12:36:47,939 INFO L158 Benchmark]: TraceAbstraction took 1762.60ms. Allocated memory is still 306.2MB. Free memory was 106.7MB in the beginning and 131.9MB in the end (delta: -25.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:36:47,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4622.88ms. Allocated memory was 58.7MB in the beginning and 153.1MB in the end (delta: 94.4MB). Free memory was 26.5MB in the beginning and 71.3MB in the end (delta: -44.8MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 239.02ms. Allocated memory is still 153.1MB. Free memory was 71.3MB in the beginning and 58.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 191.49ms. Allocated memory is still 153.1MB. Free memory was 58.7MB in the beginning and 47.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 6561.20ms. Allocated memory was 153.1MB in the beginning and 306.2MB in the end (delta: 153.1MB). Free memory was 47.2MB in the beginning and 107.7MB in the end (delta: -60.6MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1762.60ms. Allocated memory is still 306.2MB. Free memory was 106.7MB in the beginning and 131.9MB in the end (delta: -25.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-16 12:36:47,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6321185-8f4e-434d-b7a7-eb8a795fe441/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.