./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg --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 c2c8100e1f648cee1922c84a2421989bafb670d4445ddc160c17e3cd878eaa49 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:52:51,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:52:51,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:52:51,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:52:51,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:52:51,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:52:51,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:52:51,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:52:51,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:52:51,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:52:51,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:52:51,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:52:51,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:52:51,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:52:51,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:52:51,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:52:51,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:52:51,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:52:51,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:52:51,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:52:51,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:52:51,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:52:51,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:52:51,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:52:51,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:52:51,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:52:51,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:52:51,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:52:51,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:52:51,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:52:51,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:52:51,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:52:51,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:52:51,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:52:51,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:52:51,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:52:51,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:52:51,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:52:51,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:52:51,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:52:51,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:52:51,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-28 09:52:51,793 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:52:51,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:52:51,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:52:51,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:52:51,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:52:51,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:52:51,809 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:52:51,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:52:51,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:52:51,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:52:51,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:52:51,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:52:51,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:52:51,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:52:51,811 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:52:51,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:52:51,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:52:51,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:52:51,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:52:51,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:52:51,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:52:51,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:52:51,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:52:51,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:52:51,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:52:51,814 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:52:51,814 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:52:51,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:52:51,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:52:51,815 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_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c8100e1f648cee1922c84a2421989bafb670d4445ddc160c17e3cd878eaa49 [2021-10-28 09:52:52,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:52:52,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:52:52,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:52:52,204 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:52:52,205 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:52:52,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-10-28 09:52:52,285 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/data/521d9572a/7ea03eb4e8654023930aa84d8fcb5c37/FLAG5032b1161 [2021-10-28 09:52:53,384 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:52:53,386 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-10-28 09:52:53,447 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/data/521d9572a/7ea03eb4e8654023930aa84d8fcb5c37/FLAG5032b1161 [2021-10-28 09:52:53,729 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/data/521d9572a/7ea03eb4e8654023930aa84d8fcb5c37 [2021-10-28 09:52:53,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:52:53,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:52:53,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:52:53,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:52:53,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:52:53,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:52:53" (1/1) ... [2021-10-28 09:52:53,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c6dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:53, skipping insertion in model container [2021-10-28 09:52:53,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:52:53" (1/1) ... [2021-10-28 09:52:53,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:52:53,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:52:54,238 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-10-28 09:52:54,246 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-10-28 09:52:54,274 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 09:52:54,281 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 09:52:55,385 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:55,389 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:55,390 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:55,391 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:55,393 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:55,414 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:55,415 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:55,418 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:55,419 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:55,929 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 09:52:55,931 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 09:52:55,932 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 09:52:55,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 09:52:55,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 09:52:55,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 09:52:55,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 09:52:55,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 09:52:55,940 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 09:52:55,941 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 09:52:56,162 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 09:52:56,374 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,393 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:52:56,606 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:52:56,623 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-10-28 09:52:56,624 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-10-28 09:52:56,626 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 09:52:56,628 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 09:52:56,676 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,679 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,684 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,686 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,687 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,695 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,695 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,697 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,697 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 09:52:56,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 09:52:56,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 09:52:56,742 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 09:52:56,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 09:52:56,744 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 09:52:56,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 09:52:56,747 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 09:52:56,747 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 09:52:56,748 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 09:52:56,801 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 09:52:56,938 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,939 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:52:56,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:52:57,365 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:52:57,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57 WrapperNode [2021-10-28 09:52:57,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:52:57,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:52:57,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:52:57,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:52:57,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57" (1/1) ... [2021-10-28 09:52:57,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57" (1/1) ... [2021-10-28 09:52:57,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:52:57,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:52:57,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:52:57,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:52:57,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57" (1/1) ... [2021-10-28 09:52:57,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57" (1/1) ... [2021-10-28 09:52:57,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57" (1/1) ... [2021-10-28 09:52:57,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57" (1/1) ... [2021-10-28 09:52:57,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57" (1/1) ... [2021-10-28 09:52:57,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57" (1/1) ... [2021-10-28 09:52:57,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57" (1/1) ... [2021-10-28 09:52:57,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:52:57,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:52:57,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:52:57,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:52:57,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57" (1/1) ... [2021-10-28 09:52:57,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:52:57,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:52:57,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:52:57,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:52:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:52:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:52:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:52:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:52:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:52:57,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:52:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:52:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:52:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:52:57,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:52:57,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:53:11,156 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:53:11,156 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-10-28 09:53:11,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:53:11 BoogieIcfgContainer [2021-10-28 09:53:11,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:53:11,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:53:11,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:53:11,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:53:11,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:52:53" (1/3) ... [2021-10-28 09:53:11,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498e144c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:53:11, skipping insertion in model container [2021-10-28 09:53:11,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:52:57" (2/3) ... [2021-10-28 09:53:11,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498e144c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:53:11, skipping insertion in model container [2021-10-28 09:53:11,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:53:11" (3/3) ... [2021-10-28 09:53:11,171 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_harness.i [2021-10-28 09:53:11,178 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:53:11,178 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-28 09:53:11,239 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:53:11,247 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:53:11,249 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 09:53:11,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 73 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:11,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:53:11,304 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:11,305 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:11,306 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:11,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:11,318 INFO L85 PathProgramCache]: Analyzing trace with hash -34818233, now seen corresponding path program 1 times [2021-10-28 09:53:11,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:11,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333940024] [2021-10-28 09:53:11,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:11,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:12,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:12,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:12,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333940024] [2021-10-28 09:53:12,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333940024] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:12,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:12,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:53:12,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427159337] [2021-10-28 09:53:12,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:53:12,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:12,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:53:12,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:53:12,341 INFO L87 Difference]: Start difference. First operand has 74 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 73 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:12,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:12,364 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2021-10-28 09:53:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:53:12,365 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-28 09:53:12,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:12,373 INFO L225 Difference]: With dead ends: 141 [2021-10-28 09:53:12,373 INFO L226 Difference]: Without dead ends: 69 [2021-10-28 09:53:12,377 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:53:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-28 09:53:12,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-10-28 09:53:12,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.323076923076923) internal successors, (86), 68 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:12,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2021-10-28 09:53:12,421 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 25 [2021-10-28 09:53:12,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:12,421 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2021-10-28 09:53:12,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:12,422 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2021-10-28 09:53:12,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:53:12,423 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:12,424 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:12,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:53:12,424 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:12,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:12,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1661813309, now seen corresponding path program 1 times [2021-10-28 09:53:12,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:12,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830437804] [2021-10-28 09:53:12,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:12,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:12,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:12,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830437804] [2021-10-28 09:53:12,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830437804] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:12,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:12,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:53:12,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248651002] [2021-10-28 09:53:12,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:53:12,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:12,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:53:12,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:53:12,873 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:12,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:12,989 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2021-10-28 09:53:12,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:53:12,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-28 09:53:12,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:12,992 INFO L225 Difference]: With dead ends: 115 [2021-10-28 09:53:12,992 INFO L226 Difference]: Without dead ends: 69 [2021-10-28 09:53:12,993 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:53:12,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-28 09:53:13,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-10-28 09:53:13,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 68 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:13,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2021-10-28 09:53:13,004 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 25 [2021-10-28 09:53:13,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:13,004 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2021-10-28 09:53:13,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:13,005 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2021-10-28 09:53:13,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 09:53:13,007 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:13,007 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:13,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:53:13,008 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:13,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:13,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1724098915, now seen corresponding path program 1 times [2021-10-28 09:53:13,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:13,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637708165] [2021-10-28 09:53:13,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:13,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:13,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:13,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637708165] [2021-10-28 09:53:13,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637708165] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:13,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:13,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:53:13,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753371441] [2021-10-28 09:53:13,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:53:13,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:13,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:53:13,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:53:13,348 INFO L87 Difference]: Start difference. First operand 69 states and 84 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:13,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:13,530 INFO L93 Difference]: Finished difference Result 168 states and 213 transitions. [2021-10-28 09:53:13,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:53:13,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-28 09:53:13,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:13,534 INFO L225 Difference]: With dead ends: 168 [2021-10-28 09:53:13,534 INFO L226 Difference]: Without dead ends: 113 [2021-10-28 09:53:13,535 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:13,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-28 09:53:13,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 73. [2021-10-28 09:53:13,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 72 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:13,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2021-10-28 09:53:13,546 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 37 [2021-10-28 09:53:13,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:13,546 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2021-10-28 09:53:13,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:13,547 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2021-10-28 09:53:13,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 09:53:13,549 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:13,549 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:13,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:53:13,550 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:13,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:13,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1864647525, now seen corresponding path program 1 times [2021-10-28 09:53:13,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:13,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152127086] [2021-10-28 09:53:13,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:13,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:13,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:13,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152127086] [2021-10-28 09:53:13,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152127086] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:13,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:13,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:53:13,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074276958] [2021-10-28 09:53:13,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:53:13,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:13,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:53:13,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:53:13,935 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:14,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:14,108 INFO L93 Difference]: Finished difference Result 142 states and 173 transitions. [2021-10-28 09:53:14,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:53:14,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-28 09:53:14,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:14,110 INFO L225 Difference]: With dead ends: 142 [2021-10-28 09:53:14,110 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 09:53:14,111 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 09:53:14,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2021-10-28 09:53:14,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 76 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:14,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2021-10-28 09:53:14,120 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 37 [2021-10-28 09:53:14,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:14,121 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2021-10-28 09:53:14,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:14,122 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2021-10-28 09:53:14,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 09:53:14,124 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:14,124 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:14,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:53:14,125 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:14,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:14,125 INFO L85 PathProgramCache]: Analyzing trace with hash 811988131, now seen corresponding path program 1 times [2021-10-28 09:53:14,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:14,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945300046] [2021-10-28 09:53:14,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:14,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:18,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:18,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945300046] [2021-10-28 09:53:18,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945300046] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:18,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:18,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 09:53:18,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041073353] [2021-10-28 09:53:18,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:53:18,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:18,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:53:18,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:53:18,574 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:23,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:23,751 INFO L93 Difference]: Finished difference Result 128 states and 151 transitions. [2021-10-28 09:53:23,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:53:23,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-28 09:53:23,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:23,754 INFO L225 Difference]: With dead ends: 128 [2021-10-28 09:53:23,754 INFO L226 Difference]: Without dead ends: 77 [2021-10-28 09:53:23,755 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:53:23,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-28 09:53:23,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2021-10-28 09:53:23,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 72 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:23,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 86 transitions. [2021-10-28 09:53:23,763 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 86 transitions. Word has length 37 [2021-10-28 09:53:23,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:23,763 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 86 transitions. [2021-10-28 09:53:23,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:23,764 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 86 transitions. [2021-10-28 09:53:23,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 09:53:23,766 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:23,766 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:23,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:53:23,767 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:23,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:23,768 INFO L85 PathProgramCache]: Analyzing trace with hash 70791141, now seen corresponding path program 1 times [2021-10-28 09:53:23,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:23,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344102063] [2021-10-28 09:53:23,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:23,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:24,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:24,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344102063] [2021-10-28 09:53:24,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344102063] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:24,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:24,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:53:24,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255958663] [2021-10-28 09:53:24,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:53:24,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:24,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:53:24,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:24,197 INFO L87 Difference]: Start difference. First operand 73 states and 86 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:26,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:26,838 INFO L93 Difference]: Finished difference Result 176 states and 211 transitions. [2021-10-28 09:53:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:53:26,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-28 09:53:26,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:26,840 INFO L225 Difference]: With dead ends: 176 [2021-10-28 09:53:26,841 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 09:53:26,841 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:53:26,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 09:53:26,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 79. [2021-10-28 09:53:26,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 78 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:26,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2021-10-28 09:53:26,850 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 92 transitions. Word has length 45 [2021-10-28 09:53:26,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:26,850 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 92 transitions. [2021-10-28 09:53:26,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:26,851 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 92 transitions. [2021-10-28 09:53:26,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 09:53:26,853 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:26,853 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:26,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:53:26,854 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:26,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:26,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1209072537, now seen corresponding path program 1 times [2021-10-28 09:53:26,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:26,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574412187] [2021-10-28 09:53:26,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:26,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:27,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:27,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574412187] [2021-10-28 09:53:27,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574412187] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:27,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:27,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:53:27,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739546504] [2021-10-28 09:53:27,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:53:27,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:27,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:53:27,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:53:27,668 INFO L87 Difference]: Start difference. First operand 79 states and 92 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:28,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:28,068 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2021-10-28 09:53:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:53:28,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-28 09:53:28,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:28,071 INFO L225 Difference]: With dead ends: 137 [2021-10-28 09:53:28,071 INFO L226 Difference]: Without dead ends: 79 [2021-10-28 09:53:28,072 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:53:28,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-10-28 09:53:28,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-10-28 09:53:28,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.2) internal successors, (90), 78 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2021-10-28 09:53:28,078 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 45 [2021-10-28 09:53:28,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:28,079 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2021-10-28 09:53:28,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:28,080 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2021-10-28 09:53:28,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 09:53:28,088 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:28,088 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:28,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:53:28,089 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:28,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:28,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1565232391, now seen corresponding path program 1 times [2021-10-28 09:53:28,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:28,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791591671] [2021-10-28 09:53:28,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:28,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:28,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:28,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791591671] [2021-10-28 09:53:28,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791591671] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:28,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:28,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 09:53:28,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071881004] [2021-10-28 09:53:28,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:53:28,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:28,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:53:28,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:53:28,690 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:33,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:33,566 INFO L93 Difference]: Finished difference Result 162 states and 184 transitions. [2021-10-28 09:53:33,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:53:33,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-10-28 09:53:33,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:33,571 INFO L225 Difference]: With dead ends: 162 [2021-10-28 09:53:33,571 INFO L226 Difference]: Without dead ends: 124 [2021-10-28 09:53:33,571 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:53:33,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-28 09:53:33,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 90. [2021-10-28 09:53:33,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 86 states have (on average 1.186046511627907) internal successors, (102), 89 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:33,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2021-10-28 09:53:33,578 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 49 [2021-10-28 09:53:33,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:33,578 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2021-10-28 09:53:33,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2021-10-28 09:53:33,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 09:53:33,580 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:33,580 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:33,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:53:33,580 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:33,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:33,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1912086455, now seen corresponding path program 1 times [2021-10-28 09:53:33,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:33,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225605169] [2021-10-28 09:53:33,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:33,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:33,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:33,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:33,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225605169] [2021-10-28 09:53:33,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225605169] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:33,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:33,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:53:33,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567094802] [2021-10-28 09:53:33,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:53:33,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:33,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:53:33,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:53:33,827 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:33,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:33,917 INFO L93 Difference]: Finished difference Result 160 states and 180 transitions. [2021-10-28 09:53:33,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:53:33,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-10-28 09:53:33,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:33,918 INFO L225 Difference]: With dead ends: 160 [2021-10-28 09:53:33,919 INFO L226 Difference]: Without dead ends: 78 [2021-10-28 09:53:33,919 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:33,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-28 09:53:33,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2021-10-28 09:53:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 68 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:33,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2021-10-28 09:53:33,922 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 49 [2021-10-28 09:53:33,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:33,923 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2021-10-28 09:53:33,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:33,923 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2021-10-28 09:53:33,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 09:53:33,924 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:33,924 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:33,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:53:33,924 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:33,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:33,925 INFO L85 PathProgramCache]: Analyzing trace with hash -922532285, now seen corresponding path program 1 times [2021-10-28 09:53:33,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:33,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346004737] [2021-10-28 09:53:33,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:33,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:37,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:37,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:37,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346004737] [2021-10-28 09:53:37,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346004737] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:37,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:37,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:53:37,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094615878] [2021-10-28 09:53:37,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:53:37,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:37,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:53:37,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:53:37,557 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:39,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:39,933 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2021-10-28 09:53:39,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:53:39,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-10-28 09:53:39,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:39,934 INFO L225 Difference]: With dead ends: 69 [2021-10-28 09:53:39,934 INFO L226 Difference]: Without dead ends: 67 [2021-10-28 09:53:39,934 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:53:39,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-10-28 09:53:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-10-28 09:53:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 64 states have (on average 1.125) internal successors, (72), 66 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:39,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2021-10-28 09:53:39,937 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 49 [2021-10-28 09:53:39,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:39,937 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2021-10-28 09:53:39,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:39,938 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2021-10-28 09:53:39,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 09:53:39,938 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:39,938 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:39,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:53:39,939 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:39,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:39,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1790132923, now seen corresponding path program 1 times [2021-10-28 09:53:39,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:39,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618572118] [2021-10-28 09:53:39,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:39,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:42,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:42,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618572118] [2021-10-28 09:53:42,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618572118] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:42,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:42,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:53:42,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624716689] [2021-10-28 09:53:42,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:53:42,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:42,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:53:42,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:53:42,573 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:44,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:44,950 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2021-10-28 09:53:44,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:53:44,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-10-28 09:53:44,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:44,952 INFO L225 Difference]: With dead ends: 67 [2021-10-28 09:53:44,953 INFO L226 Difference]: Without dead ends: 65 [2021-10-28 09:53:44,953 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:53:44,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-10-28 09:53:44,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-10-28 09:53:44,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 63 states have (on average 1.1111111111111112) internal successors, (70), 64 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:44,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2021-10-28 09:53:44,959 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 51 [2021-10-28 09:53:44,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:44,960 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2021-10-28 09:53:44,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:44,960 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2021-10-28 09:53:44,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 09:53:44,961 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:44,961 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:44,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 09:53:44,962 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:44,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:44,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1964276967, now seen corresponding path program 1 times [2021-10-28 09:53:44,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:44,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683506587] [2021-10-28 09:53:44,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:44,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:45,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:45,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:45,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683506587] [2021-10-28 09:53:45,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683506587] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:45,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:45,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:53:45,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191095180] [2021-10-28 09:53:45,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:53:45,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:45,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:53:45,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:45,371 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:47,701 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2021-10-28 09:53:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:53:47,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-28 09:53:47,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:47,703 INFO L225 Difference]: With dead ends: 65 [2021-10-28 09:53:47,703 INFO L226 Difference]: Without dead ends: 63 [2021-10-28 09:53:47,703 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:53:47,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-28 09:53:47,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-10-28 09:53:47,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.096774193548387) internal successors, (68), 62 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:47,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2021-10-28 09:53:47,706 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 53 [2021-10-28 09:53:47,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:47,706 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2021-10-28 09:53:47,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:47,706 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2021-10-28 09:53:47,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 09:53:47,707 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:47,708 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:47,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 09:53:47,708 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-28 09:53:47,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:47,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2115314391, now seen corresponding path program 1 times [2021-10-28 09:53:47,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:53:47,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655814744] [2021-10-28 09:53:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:47,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:53:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:50,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:50,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:53:50,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655814744] [2021-10-28 09:53:50,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655814744] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:50,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:50,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:53:50,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499160501] [2021-10-28 09:53:50,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:53:50,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:53:50,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:53:50,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:53:50,252 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:50,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:50,481 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2021-10-28 09:53:50,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:53:50,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-28 09:53:50,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:50,481 INFO L225 Difference]: With dead ends: 63 [2021-10-28 09:53:50,482 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:53:50,482 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:53:50,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:53:50,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:53:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:53:50,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2021-10-28 09:53:50,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:50,483 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:53:50,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:53:50,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:53:50,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:53:50,485 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:53:50,486 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:53:50,486 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:53:50,486 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:53:50,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 09:53:50,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:53:50,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:53:50,495 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:53:50,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:53:50,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:53:50,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:53:50,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:53:51,192 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,192 INFO L857 garLoopResultBuilder]: For program point L7063(lines 7063 7067) no Hoare annotation was computed. [2021-10-28 09:53:51,192 INFO L857 garLoopResultBuilder]: For program point L7055(lines 7055 7068) no Hoare annotation was computed. [2021-10-28 09:53:51,192 INFO L857 garLoopResultBuilder]: For program point L6609(lines 6609 6614) no Hoare annotation was computed. [2021-10-28 09:53:51,192 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:53:51,192 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:53:51,192 INFO L857 garLoopResultBuilder]: For program point L6610(lines 6610 6612) no Hoare annotation was computed. [2021-10-28 09:53:51,192 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:53:51,192 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:53:51,192 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:53:51,192 INFO L857 garLoopResultBuilder]: For program point L6610-2(lines 6610 6612) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L7205-2(lines 7205 7207) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L7205(line 7205) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L7205-4(lines 7205 7207) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L7181-3(line 7181) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L7181-1(line 7181) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-10-28 09:53:51,193 INFO L857 garLoopResultBuilder]: For program point L7181(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,194 INFO L857 garLoopResultBuilder]: For program point L7181-7(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,194 INFO L857 garLoopResultBuilder]: For program point L7181-6(lines 7181 7182) no Hoare annotation was computed. [2021-10-28 09:53:51,194 INFO L857 garLoopResultBuilder]: For program point L7181-4(lines 7181 7182) no Hoare annotation was computed. [2021-10-28 09:53:51,194 INFO L853 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: (and (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base)) [2021-10-28 09:53:51,194 INFO L857 garLoopResultBuilder]: For program point L7181-11(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,194 INFO L853 garLoopResultBuilder]: At program point L6884(lines 6883 6885) the Hoare annotation is: (and (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base)) [2021-10-28 09:53:51,194 INFO L857 garLoopResultBuilder]: For program point L7181-9(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,194 INFO L857 garLoopResultBuilder]: For program point L7181-14(line 7181) no Hoare annotation was computed. [2021-10-28 09:53:51,194 INFO L857 garLoopResultBuilder]: For program point L7181-13(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,195 INFO L853 garLoopResultBuilder]: At program point L7181-12(lines 7179 7185) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0))) (.cse1 (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0)) (.cse2 (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0))) (.cse3 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0)) (.cse4 (not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_aws_byte_buf_is_valid_~buf.base) (+ ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 8))))) (.cse5 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base))) (or (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset) .cse4 .cse5 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_aws_byte_buf_is_valid_~buf.base)) (and (= ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 0) .cse0 (<= |ULTIMATE.start_aws_byte_buf_is_valid_#res| 0) .cse1 .cse2 (<= 0 |ULTIMATE.start_aws_byte_buf_is_valid_#res|) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) 8) 0)) .cse4 .cse5))) [2021-10-28 09:53:51,195 INFO L857 garLoopResultBuilder]: For program point L7181-19(lines 7181 7182) no Hoare annotation was computed. [2021-10-28 09:53:51,195 INFO L857 garLoopResultBuilder]: For program point L7181-17(lines 7181 7182) no Hoare annotation was computed. [2021-10-28 09:53:51,195 INFO L857 garLoopResultBuilder]: For program point L7181-16(line 7181) no Hoare annotation was computed. [2021-10-28 09:53:51,195 INFO L857 garLoopResultBuilder]: For program point L7181-22(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,195 INFO L857 garLoopResultBuilder]: For program point L7181-20(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,195 INFO L853 garLoopResultBuilder]: At program point L7181-25(lines 7179 7185) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0))) (.cse1 (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0)) (.cse2 (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0))) (.cse3 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0)) (.cse4 (not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_aws_byte_buf_is_valid_~buf.base) (+ ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 8))))) (.cse5 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base))) (or (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset) .cse4 (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.offset 0) .cse5 (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.base |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_aws_byte_buf_is_valid_~buf.base)) (and (= ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 0) .cse0 (<= |ULTIMATE.start_aws_byte_buf_is_valid_#res| 0) .cse1 .cse2 (<= 0 |ULTIMATE.start_aws_byte_buf_is_valid_#res|) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) 8) 0)) .cse4 .cse5))) [2021-10-28 09:53:51,195 INFO L857 garLoopResultBuilder]: For program point L7181-24(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,195 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:53:51,195 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-10-28 09:53:51,195 INFO L857 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-10-28 09:53:51,195 INFO L857 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point L7184-2(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point L7184(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point L7184-6(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point L7184-4(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point L7184-3(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point L7184-9(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point L7184-8(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point L7184-13(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point L7184-12(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point L7184-11(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,196 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:53:51,197 INFO L857 garLoopResultBuilder]: For program point L7184-17(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,197 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,197 INFO L857 garLoopResultBuilder]: For program point L7184-15(line 7184) no Hoare annotation was computed. [2021-10-28 09:53:51,197 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,197 INFO L857 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,197 INFO L857 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,197 INFO L857 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,197 INFO L857 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,197 INFO L857 garLoopResultBuilder]: For program point L223-9(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,197 INFO L857 garLoopResultBuilder]: For program point L223-10(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,197 INFO L860 garLoopResultBuilder]: At program point L8779(line 8779) the Hoare annotation is: true [2021-10-28 09:53:51,197 INFO L853 garLoopResultBuilder]: At program point L6880(lines 6876 6881) the Hoare annotation is: (and (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base)) [2021-10-28 09:53:51,197 INFO L857 garLoopResultBuilder]: For program point L8763(lines 8763 8778) no Hoare annotation was computed. [2021-10-28 09:53:51,198 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 09:53:51,198 INFO L857 garLoopResultBuilder]: For program point L7203(lines 7203 7216) no Hoare annotation was computed. [2021-10-28 09:53:51,203 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:51,204 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:53:51,222 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,223 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,223 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,227 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,228 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,228 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,240 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,246 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:51,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:53:51 BoogieIcfgContainer [2021-10-28 09:53:51,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:53:51,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:53:51,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:53:51,252 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:53:51,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:53:11" (3/4) ... [2021-10-28 09:53:51,255 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:53:51,282 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 120 nodes and edges [2021-10-28 09:53:51,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2021-10-28 09:53:51,287 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2021-10-28 09:53:51,288 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-28 09:53:51,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-28 09:53:51,292 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-28 09:53:51,294 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 09:53:51,295 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:53:51,339 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf [2021-10-28 09:53:51,339 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) && buf == buf) || (((((((((buf == 0 && !(\result == 0)) && \result <= 0) && buf == 0) && !(buf == 0)) && 0 <= \result) && buf == 0) && !(#memory_$Pointer$[buf][8] == 0)) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) [2021-10-28 09:53:51,340 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == 0) && buf == buf) && buf == buf) && buf == buf) || (((((((((buf == 0 && !(\result == 0)) && \result <= 0) && buf == 0) && !(buf == 0)) && 0 <= \result) && buf == 0) && !(#memory_$Pointer$[buf][8] == 0)) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) [2021-10-28 09:53:52,486 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:53:52,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:53:52,488 INFO L168 Benchmark]: Toolchain (without parser) took 58753.85 ms. Allocated memory was 86.0 MB in the beginning and 1.0 GB in the end (delta: 916.5 MB). Free memory was 60.3 MB in the beginning and 923.1 MB in the end (delta: -862.8 MB). Peak memory consumption was 295.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:53:52,488 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:53:52,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3631.41 ms. Allocated memory was 86.0 MB in the beginning and 178.3 MB in the end (delta: 92.3 MB). Free memory was 60.1 MB in the beginning and 122.4 MB in the end (delta: -62.2 MB). Peak memory consumption was 64.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:53:52,489 INFO L168 Benchmark]: Boogie Procedure Inliner took 321.66 ms. Allocated memory is still 178.3 MB. Free memory was 122.4 MB in the beginning and 110.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:53:52,490 INFO L168 Benchmark]: Boogie Preprocessor took 139.16 ms. Allocated memory is still 178.3 MB. Free memory was 110.9 MB in the beginning and 103.5 MB in the end (delta: 7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:53:52,490 INFO L168 Benchmark]: RCFGBuilder took 13328.60 ms. Allocated memory was 178.3 MB in the beginning and 276.8 MB in the end (delta: 98.6 MB). Free memory was 103.5 MB in the beginning and 91.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 150.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:53:52,491 INFO L168 Benchmark]: TraceAbstraction took 40089.98 ms. Allocated memory was 276.8 MB in the beginning and 417.3 MB in the end (delta: 140.5 MB). Free memory was 91.0 MB in the beginning and 305.3 MB in the end (delta: -214.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:53:52,491 INFO L168 Benchmark]: Witness Printer took 1234.92 ms. Allocated memory was 417.3 MB in the beginning and 1.0 GB in the end (delta: 585.1 MB). Free memory was 305.3 MB in the beginning and 923.1 MB in the end (delta: -617.8 MB). Peak memory consumption was 209.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:53:52,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3631.41 ms. Allocated memory was 86.0 MB in the beginning and 178.3 MB in the end (delta: 92.3 MB). Free memory was 60.1 MB in the beginning and 122.4 MB in the end (delta: -62.2 MB). Peak memory consumption was 64.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 321.66 ms. Allocated memory is still 178.3 MB. Free memory was 122.4 MB in the beginning and 110.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 139.16 ms. Allocated memory is still 178.3 MB. Free memory was 110.9 MB in the beginning and 103.5 MB in the end (delta: 7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 13328.60 ms. Allocated memory was 178.3 MB in the beginning and 276.8 MB in the end (delta: 98.6 MB). Free memory was 103.5 MB in the beginning and 91.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 150.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 40089.98 ms. Allocated memory was 276.8 MB in the beginning and 417.3 MB in the end (delta: 140.5 MB). Free memory was 91.0 MB in the beginning and 305.3 MB in the end (delta: -214.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 1234.92 ms. Allocated memory was 417.3 MB in the beginning and 1.0 GB in the end (delta: 585.1 MB). Free memory was 305.3 MB in the beginning and 923.1 MB in the end (delta: -617.8 MB). Peak memory consumption was 209.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 39.9s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 925 SDtfs, 1035 SDslu, 1772 SDs, 0 SdLazy, 642 SolverSat, 64 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 18.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=8, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 146 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 213 HoareAnnotationTreeSize, 6 FomulaSimplifications, 414 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 13.0s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 557 NumberOfCodeBlocks, 557 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 544 ConstructedInterpolants, 0 QuantifiedInterpolants, 1913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 6876]: Loop Invariant Derived loop invariant: (((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf - InvariantResult [Line: 7179]: Loop Invariant [2021-10-28 09:53:52,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:52,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:52,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:52,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:52,504 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:52,504 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((((((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == 0) && buf == buf) && buf == buf) && buf == buf) || (((((((((buf == 0 && !(\result == 0)) && \result <= 0) && buf == 0) && !(buf == 0)) && 0 <= \result) && buf == 0) && !(#memory_$Pointer$[buf][8] == 0)) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) - InvariantResult [Line: 8779]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: ((buf == 0 && !(buf == 0)) && buf == 0) && buf == buf - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: ((buf == 0 && !(buf == 0)) && buf == 0) && buf == buf - InvariantResult [Line: 7179]: Loop Invariant [2021-10-28 09:53:52,506 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:52,506 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:52,506 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:52,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:52,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 09:53:52,508 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) && buf == buf) || (((((((((buf == 0 && !(\result == 0)) && \result <= 0) && buf == 0) && !(buf == 0)) && 0 <= \result) && buf == 0) && !(#memory_$Pointer$[buf][8] == 0)) && !(0 == #memory_$Pointer$[buf][buf + 8])) && buf == buf) RESULT: Ultimate proved your program to be correct! [2021-10-28 09:53:52,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba5bffb-39db-429b-b8a5-2e118b026b34/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...