./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_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/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_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD --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 23:50:55,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:50:55,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:50:55,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:50:55,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:50:55,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:50:55,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:50:55,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:50:55,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:50:55,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:50:55,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:50:55,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:50:55,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:50:55,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:50:55,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:50:55,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:50:55,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:50:55,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:50:55,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:50:55,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:50:55,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:50:55,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:50:55,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:50:55,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:50:55,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:50:55,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:50:55,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:50:55,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:50:55,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:50:55,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:50:55,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:50:55,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:50:55,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:50:55,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:50:55,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:50:55,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:50:55,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:50:55,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:50:55,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:50:55,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:50:55,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:50:55,517 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-28 23:50:55,550 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:50:55,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:50:55,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:50:55,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:50:55,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:50:55,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:50:55,569 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:50:55,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:50:55,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:50:55,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:50:55,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:50:55,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:50:55,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:50:55,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:50:55,571 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:50:55,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:50:55,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:50:55,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:50:55,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:50:55,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:50:55,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:50:55,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:50:55,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:50:55,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:50:55,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:50:55,574 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:50:55,574 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:50:55,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:50:55,574 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:50:55,575 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_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c8100e1f648cee1922c84a2421989bafb670d4445ddc160c17e3cd878eaa49 [2021-10-28 23:50:55,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:50:55,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:50:55,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:50:55,956 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:50:55,959 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:50:55,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-10-28 23:50:56,061 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/data/81742ec0f/55b8dffacbd244b2bec6650b72dce9fe/FLAG3c1b4370e [2021-10-28 23:50:57,094 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:50:57,096 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-10-28 23:50:57,148 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/data/81742ec0f/55b8dffacbd244b2bec6650b72dce9fe/FLAG3c1b4370e [2021-10-28 23:50:57,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/data/81742ec0f/55b8dffacbd244b2bec6650b72dce9fe [2021-10-28 23:50:57,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:50:57,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:50:57,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:50:57,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:50:57,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:50:57,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:50:57" (1/1) ... [2021-10-28 23:50:57,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211ac874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:57, skipping insertion in model container [2021-10-28 23:50:57,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:50:57" (1/1) ... [2021-10-28 23:50:57,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:50:57,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:50:58,009 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_c3b600d3-1c20-4666-8f0b-9961514ad21b/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-10-28 23:50:58,019 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_c3b600d3-1c20-4666-8f0b-9961514ad21b/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-10-28 23:50:58,048 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:50:58,066 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:50:59,227 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:50:59,238 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:50:59,239 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:50:59,240 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:50:59,241 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:50:59,262 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:50:59,274 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:50:59,276 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:50:59,280 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:50:59,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:50:59,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:50:59,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:50:59,802 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:50:59,804 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:50:59,805 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:50:59,806 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:50:59,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:50:59,808 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:50:59,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:51:00,063 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:51:00,351 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,352 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:51:00,517 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:51:00,534 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_c3b600d3-1c20-4666-8f0b-9961514ad21b/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-10-28 23:51:00,535 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_c3b600d3-1c20-4666-8f0b-9961514ad21b/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-10-28 23:51:00,537 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:51:00,538 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:51:00,580 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,581 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,581 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,582 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,583 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,600 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,600 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,602 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,602 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,683 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:51:00,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:51:00,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:51:00,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:51:00,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:51:00,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:51:00,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:51:00,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:51:00,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:51:00,698 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:51:00,728 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:51:00,780 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,781 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:51:00,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:51:01,093 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:51:01,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01 WrapperNode [2021-10-28 23:51:01,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:51:01,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:51:01,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:51:01,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:51:01,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01" (1/1) ... [2021-10-28 23:51:01,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01" (1/1) ... [2021-10-28 23:51:01,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:51:01,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:51:01,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:51:01,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:51:01,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01" (1/1) ... [2021-10-28 23:51:01,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01" (1/1) ... [2021-10-28 23:51:01,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01" (1/1) ... [2021-10-28 23:51:01,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01" (1/1) ... [2021-10-28 23:51:01,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01" (1/1) ... [2021-10-28 23:51:01,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01" (1/1) ... [2021-10-28 23:51:01,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01" (1/1) ... [2021-10-28 23:51:01,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:51:01,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:51:01,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:51:01,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:51:01,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01" (1/1) ... [2021-10-28 23:51:01,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:51:01,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:01,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:01,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:51:01,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:51:01,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:51:01,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:51:01,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:51:01,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:51:01,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:51:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:51:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:51:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:51:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:51:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:51:14,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:51:14,081 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-10-28 23:51:14,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:51:14 BoogieIcfgContainer [2021-10-28 23:51:14,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:51:14,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:51:14,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:51:14,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:51:14,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:50:57" (1/3) ... [2021-10-28 23:51:14,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401b5031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:51:14, skipping insertion in model container [2021-10-28 23:51:14,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:01" (2/3) ... [2021-10-28 23:51:14,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401b5031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:51:14, skipping insertion in model container [2021-10-28 23:51:14,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:51:14" (3/3) ... [2021-10-28 23:51:14,107 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_harness.i [2021-10-28 23:51:14,113 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:51:14,113 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-28 23:51:14,194 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:51:14,204 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 23:51:14,206 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 23:51:14,232 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 23:51:14,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:51:14,263 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:14,264 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 23:51:14,265 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 23:51:14,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:14,274 INFO L85 PathProgramCache]: Analyzing trace with hash -34818233, now seen corresponding path program 1 times [2021-10-28 23:51:14,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:14,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8517322] [2021-10-28 23:51:14,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:14,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:15,239 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 23:51:15,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:15,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8517322] [2021-10-28 23:51:15,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8517322] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:15,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:15,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:51:15,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381304773] [2021-10-28 23:51:15,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:51:15,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:15,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:51:15,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:51:15,279 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 23:51:15,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:15,306 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2021-10-28 23:51:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:51:15,308 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 23:51:15,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:15,319 INFO L225 Difference]: With dead ends: 141 [2021-10-28 23:51:15,320 INFO L226 Difference]: Without dead ends: 69 [2021-10-28 23:51:15,323 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 23:51:15,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-28 23:51:15,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-10-28 23:51:15,365 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 23:51:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2021-10-28 23:51:15,369 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 25 [2021-10-28 23:51:15,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:15,369 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2021-10-28 23:51:15,370 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 23:51:15,370 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2021-10-28 23:51:15,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:51:15,372 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:15,372 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 23:51:15,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:51:15,373 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 23:51:15,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:15,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1661813309, now seen corresponding path program 1 times [2021-10-28 23:51:15,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:15,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840897230] [2021-10-28 23:51:15,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:15,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:15,790 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 23:51:15,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:15,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840897230] [2021-10-28 23:51:15,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840897230] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:15,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:15,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:51:15,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491651521] [2021-10-28 23:51:15,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:51:15,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:15,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:51:15,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:51:15,795 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 23:51:15,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:15,886 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2021-10-28 23:51:15,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:51:15,888 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 23:51:15,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:15,890 INFO L225 Difference]: With dead ends: 115 [2021-10-28 23:51:15,890 INFO L226 Difference]: Without dead ends: 69 [2021-10-28 23:51:15,891 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 23:51:15,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-28 23:51:15,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-10-28 23:51:15,898 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 23:51:15,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2021-10-28 23:51:15,901 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 25 [2021-10-28 23:51:15,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:15,902 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2021-10-28 23:51:15,902 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 23:51:15,902 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2021-10-28 23:51:15,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 23:51:15,904 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:15,905 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 23:51:15,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:51:15,905 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 23:51:15,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:15,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1724098915, now seen corresponding path program 1 times [2021-10-28 23:51:15,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:15,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217107549] [2021-10-28 23:51:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:15,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:16,251 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 23:51:16,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:16,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217107549] [2021-10-28 23:51:16,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217107549] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:16,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:16,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:51:16,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883623008] [2021-10-28 23:51:16,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:51:16,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:16,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:51:16,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:51:16,255 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 23:51:16,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:16,505 INFO L93 Difference]: Finished difference Result 168 states and 213 transitions. [2021-10-28 23:51:16,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:51:16,506 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 23:51:16,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:16,508 INFO L225 Difference]: With dead ends: 168 [2021-10-28 23:51:16,508 INFO L226 Difference]: Without dead ends: 113 [2021-10-28 23:51:16,509 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 23:51:16,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-28 23:51:16,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 73. [2021-10-28 23:51:16,518 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 23:51:16,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2021-10-28 23:51:16,535 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 37 [2021-10-28 23:51:16,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:16,536 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2021-10-28 23:51:16,536 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 23:51:16,536 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2021-10-28 23:51:16,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 23:51:16,538 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:16,538 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 23:51:16,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:51:16,538 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 23:51:16,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:16,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1864647525, now seen corresponding path program 1 times [2021-10-28 23:51:16,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:16,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444638812] [2021-10-28 23:51:16,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:16,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:16,910 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 23:51:16,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:16,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444638812] [2021-10-28 23:51:16,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444638812] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:16,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:16,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:51:16,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225528528] [2021-10-28 23:51:16,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:51:16,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:16,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:51:16,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:51:16,913 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 23:51:17,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:17,090 INFO L93 Difference]: Finished difference Result 142 states and 173 transitions. [2021-10-28 23:51:17,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:51:17,091 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 23:51:17,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:17,092 INFO L225 Difference]: With dead ends: 142 [2021-10-28 23:51:17,092 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 23:51:17,093 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 23:51:17,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 23:51:17,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2021-10-28 23:51:17,111 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 23:51:17,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2021-10-28 23:51:17,113 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 37 [2021-10-28 23:51:17,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:17,113 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2021-10-28 23:51:17,114 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 23:51:17,114 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2021-10-28 23:51:17,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 23:51:17,115 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:17,116 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 23:51:17,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:51:17,116 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 23:51:17,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash 811988131, now seen corresponding path program 1 times [2021-10-28 23:51:17,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:17,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854236723] [2021-10-28 23:51:17,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:17,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:21,624 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 23:51:21,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:21,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854236723] [2021-10-28 23:51:21,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854236723] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:21,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:21,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:51:21,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41410146] [2021-10-28 23:51:21,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:51:21,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:21,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:51:21,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:51:21,628 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 23:51:26,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:26,600 INFO L93 Difference]: Finished difference Result 128 states and 151 transitions. [2021-10-28 23:51:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:51:26,601 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 23:51:26,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:26,602 INFO L225 Difference]: With dead ends: 128 [2021-10-28 23:51:26,602 INFO L226 Difference]: Without dead ends: 77 [2021-10-28 23:51:26,603 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:51:26,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-28 23:51:26,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2021-10-28 23:51:26,611 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 23:51:26,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 86 transitions. [2021-10-28 23:51:26,613 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 86 transitions. Word has length 37 [2021-10-28 23:51:26,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:26,613 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 86 transitions. [2021-10-28 23:51:26,614 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 23:51:26,614 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 86 transitions. [2021-10-28 23:51:26,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 23:51:26,616 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:26,616 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 23:51:26,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:51:26,617 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 23:51:26,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:26,618 INFO L85 PathProgramCache]: Analyzing trace with hash 70791141, now seen corresponding path program 1 times [2021-10-28 23:51:26,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:26,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762595924] [2021-10-28 23:51:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:26,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:27,008 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 23:51:27,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:27,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762595924] [2021-10-28 23:51:27,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762595924] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:27,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:27,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:51:27,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767015304] [2021-10-28 23:51:27,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:51:27,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:27,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:51:27,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:51:27,011 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 23:51:29,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:29,649 INFO L93 Difference]: Finished difference Result 176 states and 211 transitions. [2021-10-28 23:51:29,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:51:29,650 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 23:51:29,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:29,652 INFO L225 Difference]: With dead ends: 176 [2021-10-28 23:51:29,652 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 23:51:29,653 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 23:51:29,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 23:51:29,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 79. [2021-10-28 23:51:29,662 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 23:51:29,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2021-10-28 23:51:29,663 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 92 transitions. Word has length 45 [2021-10-28 23:51:29,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:29,664 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 92 transitions. [2021-10-28 23:51:29,664 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 23:51:29,664 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 92 transitions. [2021-10-28 23:51:29,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 23:51:29,666 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:29,667 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 23:51:29,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:51:29,667 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 23:51:29,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:29,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1209072537, now seen corresponding path program 1 times [2021-10-28 23:51:29,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:29,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430686956] [2021-10-28 23:51:29,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:29,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:30,513 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 23:51:30,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:30,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430686956] [2021-10-28 23:51:30,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430686956] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:30,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:30,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:51:30,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623573782] [2021-10-28 23:51:30,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:51:30,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:30,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:51:30,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:51:30,516 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 23:51:30,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:30,891 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2021-10-28 23:51:30,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:51:30,892 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 23:51:30,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:30,893 INFO L225 Difference]: With dead ends: 137 [2021-10-28 23:51:30,893 INFO L226 Difference]: Without dead ends: 79 [2021-10-28 23:51:30,894 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 23:51:30,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-10-28 23:51:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-10-28 23:51:30,911 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 23:51:30,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2021-10-28 23:51:30,913 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 45 [2021-10-28 23:51:30,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:30,914 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2021-10-28 23:51:30,914 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 23:51:30,915 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2021-10-28 23:51:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 23:51:30,918 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:30,919 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 23:51:30,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 23:51:30,920 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 23:51:30,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:30,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1565232391, now seen corresponding path program 1 times [2021-10-28 23:51:30,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:30,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139802564] [2021-10-28 23:51:30,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:30,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:31,471 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 23:51:31,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:31,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139802564] [2021-10-28 23:51:31,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139802564] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:31,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:31,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:51:31,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720257555] [2021-10-28 23:51:31,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:51:31,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:31,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:51:31,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:51:31,475 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 23:51:36,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:36,503 INFO L93 Difference]: Finished difference Result 162 states and 184 transitions. [2021-10-28 23:51:36,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:51:36,504 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 23:51:36,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:36,505 INFO L225 Difference]: With dead ends: 162 [2021-10-28 23:51:36,505 INFO L226 Difference]: Without dead ends: 124 [2021-10-28 23:51:36,506 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 23:51:36,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-28 23:51:36,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 90. [2021-10-28 23:51:36,513 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 23:51:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2021-10-28 23:51:36,514 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 49 [2021-10-28 23:51:36,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:36,514 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2021-10-28 23:51:36,515 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 23:51:36,515 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2021-10-28 23:51:36,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 23:51:36,520 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:36,520 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 23:51:36,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:51:36,521 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 23:51:36,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:36,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1912086455, now seen corresponding path program 1 times [2021-10-28 23:51:36,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:36,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103303042] [2021-10-28 23:51:36,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:36,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:36,865 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 23:51:36,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:36,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103303042] [2021-10-28 23:51:36,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103303042] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:36,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:36,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:51:36,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255914744] [2021-10-28 23:51:36,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:51:36,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:36,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:51:36,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:51:36,868 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 23:51:36,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:36,977 INFO L93 Difference]: Finished difference Result 160 states and 180 transitions. [2021-10-28 23:51:36,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:51:36,978 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 23:51:36,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:36,979 INFO L225 Difference]: With dead ends: 160 [2021-10-28 23:51:36,979 INFO L226 Difference]: Without dead ends: 78 [2021-10-28 23:51:36,980 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 23:51:36,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-28 23:51:36,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2021-10-28 23:51:36,984 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 23:51:36,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2021-10-28 23:51:36,985 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 49 [2021-10-28 23:51:36,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:36,985 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2021-10-28 23:51:36,985 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 23:51:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2021-10-28 23:51:36,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 23:51:36,986 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:36,987 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 23:51:36,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 23:51:36,988 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 23:51:36,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:36,989 INFO L85 PathProgramCache]: Analyzing trace with hash -922532285, now seen corresponding path program 1 times [2021-10-28 23:51:36,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:36,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125959354] [2021-10-28 23:51:36,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:36,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:41,615 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 23:51:41,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:41,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125959354] [2021-10-28 23:51:41,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125959354] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:41,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:41,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:51:41,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808175212] [2021-10-28 23:51:41,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:51:41,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:41,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:51:41,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:51:41,618 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 23:51:44,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:44,068 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2021-10-28 23:51:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:51:44,069 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 23:51:44,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:44,070 INFO L225 Difference]: With dead ends: 69 [2021-10-28 23:51:44,070 INFO L226 Difference]: Without dead ends: 67 [2021-10-28 23:51:44,071 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:51:44,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-10-28 23:51:44,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-10-28 23:51:44,075 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 23:51:44,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2021-10-28 23:51:44,076 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 49 [2021-10-28 23:51:44,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:44,076 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2021-10-28 23:51:44,077 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 23:51:44,077 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2021-10-28 23:51:44,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 23:51:44,078 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:44,078 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 23:51:44,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 23:51:44,079 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 23:51:44,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:44,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1790132923, now seen corresponding path program 1 times [2021-10-28 23:51:44,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:44,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106760496] [2021-10-28 23:51:44,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:44,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:47,895 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 23:51:47,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:47,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106760496] [2021-10-28 23:51:47,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106760496] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:47,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:47,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:51:47,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229507971] [2021-10-28 23:51:47,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:51:47,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:47,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:51:47,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:51:47,897 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 23:51:50,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:50,351 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2021-10-28 23:51:50,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:51:50,352 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 23:51:50,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:50,354 INFO L225 Difference]: With dead ends: 67 [2021-10-28 23:51:50,354 INFO L226 Difference]: Without dead ends: 65 [2021-10-28 23:51:50,354 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 23:51:50,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-10-28 23:51:50,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-10-28 23:51:50,358 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 23:51:50,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2021-10-28 23:51:50,359 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 51 [2021-10-28 23:51:50,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:50,360 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2021-10-28 23:51:50,360 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 23:51:50,360 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2021-10-28 23:51:50,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 23:51:50,361 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:50,361 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 23:51:50,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 23:51:50,362 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 23:51:50,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:50,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1964276967, now seen corresponding path program 1 times [2021-10-28 23:51:50,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:50,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135591193] [2021-10-28 23:51:50,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:50,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:50,928 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 23:51:50,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:50,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135591193] [2021-10-28 23:51:50,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135591193] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:50,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:50,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:51:50,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589678447] [2021-10-28 23:51:50,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:51:50,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:50,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:51:50,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:51:50,930 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 23:51:53,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:53,370 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2021-10-28 23:51:53,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:51:53,371 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 23:51:53,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:53,372 INFO L225 Difference]: With dead ends: 65 [2021-10-28 23:51:53,372 INFO L226 Difference]: Without dead ends: 63 [2021-10-28 23:51:53,372 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 23:51:53,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-28 23:51:53,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-10-28 23:51:53,375 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 23:51:53,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2021-10-28 23:51:53,376 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 53 [2021-10-28 23:51:53,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:53,377 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2021-10-28 23:51:53,377 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 23:51:53,377 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2021-10-28 23:51:53,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 23:51:53,378 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:51:53,378 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 23:51:53,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 23:51:53,379 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 23:51:53,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:53,380 INFO L85 PathProgramCache]: Analyzing trace with hash -2115314391, now seen corresponding path program 1 times [2021-10-28 23:51:53,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:53,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023837922] [2021-10-28 23:51:53,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:53,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:56,929 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 23:51:56,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:56,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023837922] [2021-10-28 23:51:56,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023837922] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:56,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:56,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:51:56,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879502884] [2021-10-28 23:51:56,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:51:56,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:56,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:51:56,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:51:56,932 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 23:51:57,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:57,198 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2021-10-28 23:51:57,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:51:57,199 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 23:51:57,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:51:57,199 INFO L225 Difference]: With dead ends: 63 [2021-10-28 23:51:57,199 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:51:57,200 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:51:57,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:51:57,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:51:57,200 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 23:51:57,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:51:57,201 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2021-10-28 23:51:57,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:51:57,201 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:51:57,201 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 23:51:57,201 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:51:57,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:51:57,204 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:51:57,205 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:51:57,205 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:51:57,205 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:51:57,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 23:51:57,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:51:57,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:51:57,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:51:57,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:51:57,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:51:57,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:51:57,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:51:58,058 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,059 INFO L857 garLoopResultBuilder]: For program point L7063(lines 7063 7067) no Hoare annotation was computed. [2021-10-28 23:51:58,059 INFO L857 garLoopResultBuilder]: For program point L7055(lines 7055 7068) no Hoare annotation was computed. [2021-10-28 23:51:58,059 INFO L857 garLoopResultBuilder]: For program point L6609(lines 6609 6614) no Hoare annotation was computed. [2021-10-28 23:51:58,059 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:51:58,059 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:51:58,059 INFO L857 garLoopResultBuilder]: For program point L6610(lines 6610 6612) no Hoare annotation was computed. [2021-10-28 23:51:58,059 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:51:58,059 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:51:58,060 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:51:58,060 INFO L857 garLoopResultBuilder]: For program point L6610-2(lines 6610 6612) no Hoare annotation was computed. [2021-10-28 23:51:58,060 INFO L857 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:51:58,060 INFO L857 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:51:58,060 INFO L857 garLoopResultBuilder]: For program point L7205-2(lines 7205 7207) no Hoare annotation was computed. [2021-10-28 23:51:58,060 INFO L857 garLoopResultBuilder]: For program point L7205(line 7205) no Hoare annotation was computed. [2021-10-28 23:51:58,060 INFO L857 garLoopResultBuilder]: For program point L7205-4(lines 7205 7207) no Hoare annotation was computed. [2021-10-28 23:51:58,060 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,061 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-28 23:51:58,061 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-10-28 23:51:58,061 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-10-28 23:51:58,061 INFO L857 garLoopResultBuilder]: For program point L7181-3(line 7181) no Hoare annotation was computed. [2021-10-28 23:51:58,061 INFO L857 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-10-28 23:51:58,061 INFO L857 garLoopResultBuilder]: For program point L7181-1(line 7181) no Hoare annotation was computed. [2021-10-28 23:51:58,061 INFO L857 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-10-28 23:51:58,061 INFO L857 garLoopResultBuilder]: For program point L7181(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,061 INFO L857 garLoopResultBuilder]: For program point L7181-7(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,062 INFO L857 garLoopResultBuilder]: For program point L7181-6(lines 7181 7182) no Hoare annotation was computed. [2021-10-28 23:51:58,062 INFO L857 garLoopResultBuilder]: For program point L7181-4(lines 7181 7182) no Hoare annotation was computed. [2021-10-28 23:51:58,062 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 23:51:58,062 INFO L857 garLoopResultBuilder]: For program point L7181-11(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,062 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 23:51:58,063 INFO L857 garLoopResultBuilder]: For program point L7181-9(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,063 INFO L857 garLoopResultBuilder]: For program point L7181-14(line 7181) no Hoare annotation was computed. [2021-10-28 23:51:58,063 INFO L857 garLoopResultBuilder]: For program point L7181-13(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,063 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 23:51:58,063 INFO L857 garLoopResultBuilder]: For program point L7181-19(lines 7181 7182) no Hoare annotation was computed. [2021-10-28 23:51:58,063 INFO L857 garLoopResultBuilder]: For program point L7181-17(lines 7181 7182) no Hoare annotation was computed. [2021-10-28 23:51:58,064 INFO L857 garLoopResultBuilder]: For program point L7181-16(line 7181) no Hoare annotation was computed. [2021-10-28 23:51:58,064 INFO L857 garLoopResultBuilder]: For program point L7181-22(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,064 INFO L857 garLoopResultBuilder]: For program point L7181-20(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,064 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 23:51:58,064 INFO L857 garLoopResultBuilder]: For program point L7181-24(lines 7181 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,064 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:51:58,064 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-10-28 23:51:58,064 INFO L857 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-10-28 23:51:58,065 INFO L857 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-10-28 23:51:58,065 INFO L857 garLoopResultBuilder]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2021-10-28 23:51:58,065 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,065 INFO L857 garLoopResultBuilder]: For program point L7184-2(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,065 INFO L857 garLoopResultBuilder]: For program point L7184(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,065 INFO L857 garLoopResultBuilder]: For program point L7184-6(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,065 INFO L857 garLoopResultBuilder]: For program point L7184-4(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,066 INFO L857 garLoopResultBuilder]: For program point L7184-3(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,066 INFO L857 garLoopResultBuilder]: For program point L7184-9(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,066 INFO L857 garLoopResultBuilder]: For program point L7184-8(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,066 INFO L857 garLoopResultBuilder]: For program point L7184-13(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,066 INFO L857 garLoopResultBuilder]: For program point L7184-12(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,066 INFO L857 garLoopResultBuilder]: For program point L7184-11(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,066 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:51:58,066 INFO L857 garLoopResultBuilder]: For program point L7184-17(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,066 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,067 INFO L857 garLoopResultBuilder]: For program point L7184-15(line 7184) no Hoare annotation was computed. [2021-10-28 23:51:58,067 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,067 INFO L857 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,067 INFO L857 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,067 INFO L857 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,067 INFO L857 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,067 INFO L857 garLoopResultBuilder]: For program point L223-9(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,067 INFO L857 garLoopResultBuilder]: For program point L223-10(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,068 INFO L860 garLoopResultBuilder]: At program point L8779(line 8779) the Hoare annotation is: true [2021-10-28 23:51:58,068 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 23:51:58,068 INFO L857 garLoopResultBuilder]: For program point L8763(lines 8763 8778) no Hoare annotation was computed. [2021-10-28 23:51:58,068 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 23:51:58,068 INFO L857 garLoopResultBuilder]: For program point L7203(lines 7203 7216) no Hoare annotation was computed. [2021-10-28 23:51:58,074 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:58,076 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:51:58,092 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,094 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,094 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,100 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,101 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,101 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,117 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,119 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,119 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,120 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,121 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,122 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:58,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:51:58 BoogieIcfgContainer [2021-10-28 23:51:58,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:51:58,132 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:51:58,132 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:51:58,132 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:51:58,133 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:51:14" (3/4) ... [2021-10-28 23:51:58,137 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:51:58,172 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 120 nodes and edges [2021-10-28 23:51:58,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2021-10-28 23:51:58,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2021-10-28 23:51:58,180 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-28 23:51:58,182 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-28 23:51:58,184 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-28 23:51:58,186 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 23:51:58,188 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:51:58,243 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf [2021-10-28 23:51:58,243 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 23:51:58,244 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 23:51:59,497 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:51:59,497 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:51:59,499 INFO L168 Benchmark]: Toolchain (without parser) took 62035.44 ms. Allocated memory was 98.6 MB in the beginning and 461.4 MB in the end (delta: 362.8 MB). Free memory was 60.4 MB in the beginning and 118.9 MB in the end (delta: -58.6 MB). Peak memory consumption was 314.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:59,500 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 98.6 MB. Free memory is still 54.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:51:59,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3624.21 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 60.2 MB in the beginning and 51.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 61.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:59,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 240.48 ms. Allocated memory is still 119.5 MB. Free memory was 51.3 MB in the beginning and 40.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:59,501 INFO L168 Benchmark]: Boogie Preprocessor took 178.37 ms. Allocated memory is still 119.5 MB. Free memory was 40.0 MB in the beginning and 66.4 MB in the end (delta: -26.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:59,502 INFO L168 Benchmark]: RCFGBuilder took 12568.28 ms. Allocated memory was 119.5 MB in the beginning and 255.9 MB in the end (delta: 136.3 MB). Free memory was 66.4 MB in the beginning and 99.4 MB in the end (delta: -33.1 MB). Peak memory consumption was 156.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:59,503 INFO L168 Benchmark]: TraceAbstraction took 44045.35 ms. Allocated memory was 255.9 MB in the beginning and 461.4 MB in the end (delta: 205.5 MB). Free memory was 99.4 MB in the beginning and 396.5 MB in the end (delta: -297.1 MB). Peak memory consumption was 174.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:59,503 INFO L168 Benchmark]: Witness Printer took 1365.23 ms. Allocated memory is still 461.4 MB. Free memory was 396.5 MB in the beginning and 118.9 MB in the end (delta: 277.6 MB). Peak memory consumption was 287.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:59,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 98.6 MB. Free memory is still 54.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3624.21 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 60.2 MB in the beginning and 51.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 61.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 240.48 ms. Allocated memory is still 119.5 MB. Free memory was 51.3 MB in the beginning and 40.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 178.37 ms. Allocated memory is still 119.5 MB. Free memory was 40.0 MB in the beginning and 66.4 MB in the end (delta: -26.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12568.28 ms. Allocated memory was 119.5 MB in the beginning and 255.9 MB in the end (delta: 136.3 MB). Free memory was 66.4 MB in the beginning and 99.4 MB in the end (delta: -33.1 MB). Peak memory consumption was 156.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 44045.35 ms. Allocated memory was 255.9 MB in the beginning and 461.4 MB in the end (delta: 205.5 MB). Free memory was 99.4 MB in the beginning and 396.5 MB in the end (delta: -297.1 MB). Peak memory consumption was 174.8 MB. Max. memory is 16.1 GB. * Witness Printer took 1365.23 ms. Allocated memory is still 461.4 MB. Free memory was 396.5 MB in the beginning and 118.9 MB in the end (delta: 277.6 MB). Peak memory consumption was 287.0 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: 43.8s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 925 SDtfs, 1035 SDslu, 1772 SDs, 0 SdLazy, 642 SolverSat, 64 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 18.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.1s 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: 0.1s 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, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 16.1s SatisfiabilityAnalysisTime, 4.4s 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 23:51:59,518 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:59,518 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:59,519 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:59,520 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:59,520 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:59,521 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 23:51:59,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:59,524 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:59,524 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:59,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:59,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-28 23:51:59,526 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 23:51:59,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b600d3-1c20-4666-8f0b-9961514ad21b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...