./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/memset_override_0_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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:23:15,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:23:15,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:23:15,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:23:15,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:23:15,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:23:15,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:23:15,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:23:15,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:23:15,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:23:15,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:23:15,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:23:15,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:23:15,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:23:15,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:23:15,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:23:15,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:23:15,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:23:15,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:23:15,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:23:15,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:23:15,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:23:15,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:23:15,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:23:15,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:23:15,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:23:15,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:23:15,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:23:15,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:23:15,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:23:15,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:23:15,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:23:15,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:23:15,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:23:15,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:23:15,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:23:15,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:23:15,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:23:15,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:23:15,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:23:15,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:23:15,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-28 23:23:15,444 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:23:15,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:23:15,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:23:15,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:23:15,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:23:15,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:23:15,457 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:23:15,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:23:15,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:23:15,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:23:15,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:23:15,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:23:15,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:23:15,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:23:15,460 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:23:15,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:23:15,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:23:15,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:23:15,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:23:15,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:23:15,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:23:15,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:23:15,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:23:15,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:23:15,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:23:15,464 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:23:15,464 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:23:15,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:23:15,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:23:15,467 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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2021-10-28 23:23:15,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:23:15,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:23:15,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:23:15,841 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:23:15,842 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:23:15,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-10-28 23:23:15,925 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/data/76d6e7f4c/4675f5facb9a48b0a839e9687e575544/FLAGf5cd1d2e4 [2021-10-28 23:23:16,712 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:23:16,714 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-10-28 23:23:16,771 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/data/76d6e7f4c/4675f5facb9a48b0a839e9687e575544/FLAGf5cd1d2e4 [2021-10-28 23:23:16,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/data/76d6e7f4c/4675f5facb9a48b0a839e9687e575544 [2021-10-28 23:23:16,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:23:16,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:23:16,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:23:16,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:23:16,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:23:16,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:23:16" (1/1) ... [2021-10-28 23:23:16,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43aad7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:16, skipping insertion in model container [2021-10-28 23:23:16,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:23:16" (1/1) ... [2021-10-28 23:23:16,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:23:16,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:23:17,287 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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-10-28 23:23:17,295 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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-10-28 23:23:17,315 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:23:17,320 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:23:18,125 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,126 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,127 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,128 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,130 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,149 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,150 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,153 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,154 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,157 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,159 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,160 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,160 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,454 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:23:18,463 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:23:18,469 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:23:18,477 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:23:18,480 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:23:18,483 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:23:18,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:23:18,489 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:23:18,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:23:18,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:23:18,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:23:18,611 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:23:18,629 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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-10-28 23:23:18,630 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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-10-28 23:23:18,633 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:23:18,634 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:23:18,724 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,725 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,738 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,739 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,740 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,751 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,759 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,761 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,762 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,768 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,770 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,772 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,774 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:18,813 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:23:18,814 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:23:18,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:23:18,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:23:18,873 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:23:18,874 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:23:18,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:23:18,883 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:23:18,892 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:23:18,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:23:18,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:23:19,203 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:23:19,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19 WrapperNode [2021-10-28 23:23:19,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:23:19,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:23:19,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:23:19,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:23:19,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19" (1/1) ... [2021-10-28 23:23:19,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19" (1/1) ... [2021-10-28 23:23:19,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:23:19,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:23:19,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:23:19,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:23:19,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19" (1/1) ... [2021-10-28 23:23:19,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19" (1/1) ... [2021-10-28 23:23:19,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19" (1/1) ... [2021-10-28 23:23:19,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19" (1/1) ... [2021-10-28 23:23:19,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19" (1/1) ... [2021-10-28 23:23:19,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19" (1/1) ... [2021-10-28 23:23:19,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19" (1/1) ... [2021-10-28 23:23:19,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:23:19,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:23:19,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:23:19,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:23:19,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19" (1/1) ... [2021-10-28 23:23:19,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:23:19,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:23:19,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:23:19,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:23:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:23:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:23:19,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:23:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:23:19,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:23:19,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:23:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:23:20,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:23:20,257 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-10-28 23:23:20,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:23:20 BoogieIcfgContainer [2021-10-28 23:23:20,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:23:20,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:23:20,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:23:20,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:23:20,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:23:16" (1/3) ... [2021-10-28 23:23:20,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221dd8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:23:20, skipping insertion in model container [2021-10-28 23:23:20,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:19" (2/3) ... [2021-10-28 23:23:20,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221dd8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:23:20, skipping insertion in model container [2021-10-28 23:23:20,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:23:20" (3/3) ... [2021-10-28 23:23:20,271 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2021-10-28 23:23:20,277 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:23:20,277 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-10-28 23:23:20,331 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:23:20,338 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 23:23:20,338 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-28 23:23:20,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 52 states have internal predecessors, (71), 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 23:23:20,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:23:20,363 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:20,364 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:20,365 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:20,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:20,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2009978325, now seen corresponding path program 1 times [2021-10-28 23:23:20,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:23:20,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428118772] [2021-10-28 23:23:20,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:20,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:23:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:20,688 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 23:23:20,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:23:20,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428118772] [2021-10-28 23:23:20,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428118772] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:20,690 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:20,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:23:20,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534293045] [2021-10-28 23:23:20,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:23:20,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:23:20,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:23:20,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:23:20,726 INFO L87 Difference]: Start difference. First operand has 53 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 52 states have internal predecessors, (71), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 23:23:20,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:20,764 INFO L93 Difference]: Finished difference Result 103 states and 138 transitions. [2021-10-28 23:23:20,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:23:20,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-10-28 23:23:20,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:20,777 INFO L225 Difference]: With dead ends: 103 [2021-10-28 23:23:20,777 INFO L226 Difference]: Without dead ends: 47 [2021-10-28 23:23:20,782 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 23:23:20,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-28 23:23:20,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-28 23:23:20,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 46 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2021-10-28 23:23:20,830 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 16 [2021-10-28 23:23:20,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:20,831 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2021-10-28 23:23:20,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 23:23:20,831 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2021-10-28 23:23:20,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:23:20,833 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:20,835 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:20,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:23:20,839 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:20,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:20,845 INFO L85 PathProgramCache]: Analyzing trace with hash 329723105, now seen corresponding path program 1 times [2021-10-28 23:23:20,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:23:20,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791006855] [2021-10-28 23:23:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:20,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:23:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:21,358 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 23:23:21,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:23:21,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791006855] [2021-10-28 23:23:21,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791006855] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:21,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:21,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:23:21,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212180792] [2021-10-28 23:23:21,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:23:21,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:23:21,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:23:21,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:23:21,370 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 23:23:21,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:21,521 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2021-10-28 23:23:21,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:23:21,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2021-10-28 23:23:21,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:21,523 INFO L225 Difference]: With dead ends: 47 [2021-10-28 23:23:21,523 INFO L226 Difference]: Without dead ends: 45 [2021-10-28 23:23:21,524 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:23:21,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-28 23:23:21,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-10-28 23:23:21,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.170731707317073) internal successors, (48), 44 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:21,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-10-28 23:23:21,532 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 16 [2021-10-28 23:23:21,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:21,532 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-10-28 23:23:21,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 23:23:21,533 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-10-28 23:23:21,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:23:21,534 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:21,534 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:21,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:23:21,534 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:21,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:21,535 INFO L85 PathProgramCache]: Analyzing trace with hash -963549789, now seen corresponding path program 1 times [2021-10-28 23:23:21,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:23:21,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388561279] [2021-10-28 23:23:21,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:21,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:23:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:23:21,631 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:23:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:23:21,727 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:23:21,727 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:23:21,728 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:21,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:21,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:21,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:21,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:21,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:23:21,736 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 23:23:21,739 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:23:21,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:23:21 BoogieIcfgContainer [2021-10-28 23:23:21,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:23:21,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:23:21,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:23:21,778 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:23:21,778 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:23:20" (3/4) ... [2021-10-28 23:23:21,782 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:23:21,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:23:21,785 INFO L168 Benchmark]: Toolchain (without parser) took 4974.75 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 60.5 MB in the beginning and 74.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:21,785 INFO L168 Benchmark]: CDTParser took 1.01 ms. Allocated memory is still 98.6 MB. Free memory was 54.4 MB in the beginning and 54.3 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:23:21,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2390.49 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 60.3 MB in the beginning and 87.1 MB in the end (delta: -26.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:21,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 196.14 ms. Allocated memory is still 127.9 MB. Free memory was 87.1 MB in the beginning and 82.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:21,788 INFO L168 Benchmark]: Boogie Preprocessor took 69.89 ms. Allocated memory is still 127.9 MB. Free memory was 82.2 MB in the beginning and 80.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:21,789 INFO L168 Benchmark]: RCFGBuilder took 787.09 ms. Allocated memory is still 127.9 MB. Free memory was 79.5 MB in the beginning and 62.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:21,789 INFO L168 Benchmark]: TraceAbstraction took 1515.01 ms. Allocated memory is still 127.9 MB. Free memory was 62.7 MB in the beginning and 75.4 MB in the end (delta: -12.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:23:21,790 INFO L168 Benchmark]: Witness Printer took 5.21 ms. Allocated memory is still 127.9 MB. Free memory was 75.4 MB in the beginning and 74.6 MB in the end (delta: 798.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:21,794 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01 ms. Allocated memory is still 98.6 MB. Free memory was 54.4 MB in the beginning and 54.3 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2390.49 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 60.3 MB in the beginning and 87.1 MB in the end (delta: -26.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 196.14 ms. Allocated memory is still 127.9 MB. Free memory was 87.1 MB in the beginning and 82.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.89 ms. Allocated memory is still 127.9 MB. Free memory was 82.2 MB in the beginning and 80.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 787.09 ms. Allocated memory is still 127.9 MB. Free memory was 79.5 MB in the beginning and 62.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1515.01 ms. Allocated memory is still 127.9 MB. Free memory was 62.7 MB in the beginning and 75.4 MB in the end (delta: -12.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.21 ms. Allocated memory is still 127.9 MB. Free memory was 75.4 MB in the beginning and 74.6 MB in the end (delta: 798.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 5885. Possible FailurePath: [L5906] short d1[160]; [L5907] short d2[160]; [L5908] int c = __VERIFIER_nondet_int(); [L211] COND FALSE !(!cond) [L5911] unsigned size = __VERIFIER_nondet_uint(); [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L5871] COND FALSE !(n > 0) [L5876] return s; [L211] COND FALSE !(!cond) [L223] COND FALSE !(!cond) [L5884] size_t num_uint64s = n >> 3; [L5885] size_t rem = n & 0x7; [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 99 SDtfs, 70 SDslu, 76 SDs, 0 SdLazy, 39 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:23:21,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:23:25,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:23:25,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:23:25,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:23:25,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:23:25,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:23:25,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:23:25,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:23:25,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:23:25,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:23:25,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:23:25,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:23:25,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:23:25,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:23:25,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:23:25,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:23:25,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:23:25,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:23:25,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:23:25,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:23:25,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:23:25,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:23:25,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:23:25,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:23:25,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:23:25,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:23:25,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:23:25,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:23:25,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:23:25,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:23:25,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:23:25,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:23:25,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:23:25,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:23:25,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:23:25,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:23:25,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:23:25,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:23:25,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:23:25,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:23:25,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:23:25,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-10-28 23:23:25,299 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:23:25,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:23:25,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:23:25,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:23:25,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:23:25,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:23:25,302 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:23:25,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:23:25,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:23:25,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:23:25,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:23:25,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:23:25,304 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:23:25,304 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:23:25,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:23:25,304 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:23:25,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:23:25,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:23:25,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:23:25,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:23:25,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:23:25,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:23:25,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:23:25,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:23:25,307 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:23:25,307 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:23:25,307 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:23:25,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:23:25,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:23:25,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:23:25,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:23:25,309 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2021-10-28 23:23:25,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:23:25,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:23:25,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:23:25,833 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:23:25,834 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:23:25,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-10-28 23:23:25,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/data/bbec4e579/2d525e40b4c347319518d633c5bce729/FLAG1a1ffc5d8 [2021-10-28 23:23:26,830 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:23:26,831 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-10-28 23:23:26,879 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/data/bbec4e579/2d525e40b4c347319518d633c5bce729/FLAG1a1ffc5d8 [2021-10-28 23:23:27,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/data/bbec4e579/2d525e40b4c347319518d633c5bce729 [2021-10-28 23:23:27,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:23:27,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:23:27,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:23:27,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:23:27,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:23:27,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:23:27" (1/1) ... [2021-10-28 23:23:27,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9978bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:27, skipping insertion in model container [2021-10-28 23:23:27,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:23:27" (1/1) ... [2021-10-28 23:23:27,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:23:27,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:23:27,834 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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-10-28 23:23:27,841 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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-10-28 23:23:27,871 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:23:27,877 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:23:28,682 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,683 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,684 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,686 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,687 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,708 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,709 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,712 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,713 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,716 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,720 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,721 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,721 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:28,981 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:23:28,983 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:23:28,985 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:23:28,986 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:23:28,989 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:23:28,990 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:23:28,991 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:23:28,992 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:23:28,993 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:23:28,994 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:23:29,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:23:29,158 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:23:29,198 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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-10-28 23:23:29,198 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_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-10-28 23:23:29,214 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:23:29,215 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:23:29,325 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,334 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,335 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,336 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,337 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,350 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,364 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,367 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,368 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,370 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,371 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,372 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,373 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:23:29,418 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:23:29,420 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:23:29,421 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:23:29,423 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:23:29,458 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:23:29,459 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:23:29,460 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:23:29,461 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:23:29,462 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:23:29,462 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:23:29,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:23:29,886 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:23:29,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29 WrapperNode [2021-10-28 23:23:29,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:23:29,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:23:29,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:23:29,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:23:29,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29" (1/1) ... [2021-10-28 23:23:30,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29" (1/1) ... [2021-10-28 23:23:30,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:23:30,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:23:30,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:23:30,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:23:30,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29" (1/1) ... [2021-10-28 23:23:30,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29" (1/1) ... [2021-10-28 23:23:30,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29" (1/1) ... [2021-10-28 23:23:30,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29" (1/1) ... [2021-10-28 23:23:30,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29" (1/1) ... [2021-10-28 23:23:30,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29" (1/1) ... [2021-10-28 23:23:30,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29" (1/1) ... [2021-10-28 23:23:30,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:23:30,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:23:30,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:23:30,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:23:30,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29" (1/1) ... [2021-10-28 23:23:30,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:23:30,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:23:30,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:23:30,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:23:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:23:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:23:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:23:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:23:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 23:23:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:23:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-10-28 23:23:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 23:23:31,060 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:23:31,060 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-10-28 23:23:31,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:23:31 BoogieIcfgContainer [2021-10-28 23:23:31,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:23:31,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:23:31,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:23:31,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:23:31,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:23:27" (1/3) ... [2021-10-28 23:23:31,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34cc5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:23:31, skipping insertion in model container [2021-10-28 23:23:31,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:29" (2/3) ... [2021-10-28 23:23:31,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34cc5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:23:31, skipping insertion in model container [2021-10-28 23:23:31,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:23:31" (3/3) ... [2021-10-28 23:23:31,087 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2021-10-28 23:23:31,095 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:23:31,096 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-10-28 23:23:31,180 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:23:31,194 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 23:23:31,195 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-28 23:23:31,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 52 states have internal predecessors, (71), 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 23:23:31,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:23:31,226 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:31,226 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:31,229 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:31,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:31,237 INFO L85 PathProgramCache]: Analyzing trace with hash -2009978325, now seen corresponding path program 1 times [2021-10-28 23:23:31,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:31,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935301780] [2021-10-28 23:23:31,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:31,259 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:31,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:31,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:31,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:23:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:31,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:23:31,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:31,632 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 23:23:31,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:31,728 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 23:23:31,729 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:31,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935301780] [2021-10-28 23:23:31,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935301780] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:31,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:31,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:23:31,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426728441] [2021-10-28 23:23:31,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:23:31,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:31,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:23:31,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:23:31,764 INFO L87 Difference]: Start difference. First operand has 53 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 52 states have internal predecessors, (71), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 23:23:31,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:31,796 INFO L93 Difference]: Finished difference Result 103 states and 138 transitions. [2021-10-28 23:23:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:23:31,798 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-10-28 23:23:31,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:31,808 INFO L225 Difference]: With dead ends: 103 [2021-10-28 23:23:31,809 INFO L226 Difference]: Without dead ends: 47 [2021-10-28 23:23:31,812 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 23:23:31,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-28 23:23:31,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-28 23:23:31,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 46 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:31,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2021-10-28 23:23:31,867 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 16 [2021-10-28 23:23:31,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:31,867 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2021-10-28 23:23:31,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 23:23:31,871 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2021-10-28 23:23:31,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:23:31,873 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:31,874 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:31,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:32,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:32,092 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:32,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:32,093 INFO L85 PathProgramCache]: Analyzing trace with hash 329723105, now seen corresponding path program 1 times [2021-10-28 23:23:32,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:32,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978897406] [2021-10-28 23:23:32,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:32,098 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:32,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:32,103 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:32,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:23:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:32,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:23:32,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:32,567 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 23:23:32,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:32,752 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 23:23:32,752 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:32,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978897406] [2021-10-28 23:23:32,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978897406] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:32,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:32,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-10-28 23:23:32,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153128298] [2021-10-28 23:23:32,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:23:32,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:32,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:23:32,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:23:32,762 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 23:23:33,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:33,030 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2021-10-28 23:23:33,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:23:33,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 16 [2021-10-28 23:23:33,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:33,033 INFO L225 Difference]: With dead ends: 47 [2021-10-28 23:23:33,034 INFO L226 Difference]: Without dead ends: 45 [2021-10-28 23:23:33,035 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:23:33,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-28 23:23:33,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-10-28 23:23:33,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.170731707317073) internal successors, (48), 44 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:33,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-10-28 23:23:33,054 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 16 [2021-10-28 23:23:33,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:33,056 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-10-28 23:23:33,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 23:23:33,057 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-10-28 23:23:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:23:33,059 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:33,060 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:33,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 23:23:33,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:33,278 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:33,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:33,279 INFO L85 PathProgramCache]: Analyzing trace with hash -963549789, now seen corresponding path program 1 times [2021-10-28 23:23:33,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:33,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864257960] [2021-10-28 23:23:33,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:33,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:33,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:33,290 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:33,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:23:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:33,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:23:33,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:33,751 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 23:23:33,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:33,942 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 23:23:33,942 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:33,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864257960] [2021-10-28 23:23:33,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864257960] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:33,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:33,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-10-28 23:23:33,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47117614] [2021-10-28 23:23:33,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:23:33,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:33,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:23:33,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:23:33,947 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 23:23:34,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:34,281 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2021-10-28 23:23:34,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:23:34,282 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 18 [2021-10-28 23:23:34,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:34,283 INFO L225 Difference]: With dead ends: 45 [2021-10-28 23:23:34,283 INFO L226 Difference]: Without dead ends: 43 [2021-10-28 23:23:34,283 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:23:34,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-28 23:23:34,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-10-28 23:23:34,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.15) internal successors, (46), 42 states have internal predecessors, (46), 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 23:23:34,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2021-10-28 23:23:34,291 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 18 [2021-10-28 23:23:34,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:34,291 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2021-10-28 23:23:34,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 23:23:34,292 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2021-10-28 23:23:34,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:23:34,293 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:34,293 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] [2021-10-28 23:23:34,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:34,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:34,518 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:34,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:34,519 INFO L85 PathProgramCache]: Analyzing trace with hash -59070895, now seen corresponding path program 1 times [2021-10-28 23:23:34,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:34,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567099253] [2021-10-28 23:23:34,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:34,521 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:34,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:34,526 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:34,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:23:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:34,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:23:34,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:35,137 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 23:23:35,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:35,407 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 23:23:35,408 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:35,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567099253] [2021-10-28 23:23:35,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567099253] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:35,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:35,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-28 23:23:35,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335629342] [2021-10-28 23:23:35,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:23:35,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:35,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:23:35,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:23:35,417 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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 23:23:35,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:35,539 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-10-28 23:23:35,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:23:35,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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 23 [2021-10-28 23:23:35,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:35,543 INFO L225 Difference]: With dead ends: 48 [2021-10-28 23:23:35,544 INFO L226 Difference]: Without dead ends: 46 [2021-10-28 23:23:35,544 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:23:35,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-28 23:23:35,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2021-10-28 23:23:35,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 40 states have internal predecessors, (44), 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 23:23:35,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2021-10-28 23:23:35,558 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 23 [2021-10-28 23:23:35,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:35,558 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2021-10-28 23:23:35,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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 23:23:35,559 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2021-10-28 23:23:35,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 23:23:35,561 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:35,561 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:35,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:35,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:35,783 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:35,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:35,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1945883960, now seen corresponding path program 1 times [2021-10-28 23:23:35,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:35,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186930701] [2021-10-28 23:23:35,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:35,785 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:35,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:35,786 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:35,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:23:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:36,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:23:36,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:36,465 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 23:23:36,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:36,650 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 23:23:36,651 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:36,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186930701] [2021-10-28 23:23:36,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186930701] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:36,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:36,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 11 [2021-10-28 23:23:36,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996823872] [2021-10-28 23:23:36,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:23:36,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:36,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:23:36,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:23:36,653 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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 23:23:37,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:37,376 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2021-10-28 23:23:37,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:23:37,377 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-28 23:23:37,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:37,381 INFO L225 Difference]: With dead ends: 78 [2021-10-28 23:23:37,382 INFO L226 Difference]: Without dead ends: 63 [2021-10-28 23:23:37,383 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:23:37,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-28 23:23:37,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 55. [2021-10-28 23:23:37,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 54 states have internal predecessors, (59), 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 23:23:37,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-10-28 23:23:37,410 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 28 [2021-10-28 23:23:37,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:37,411 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-10-28 23:23:37,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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 23:23:37,411 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-10-28 23:23:37,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:23:37,413 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:37,414 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] [2021-10-28 23:23:37,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-28 23:23:37,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:37,633 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:37,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash -20878187, now seen corresponding path program 1 times [2021-10-28 23:23:37,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:37,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127504068] [2021-10-28 23:23:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:37,636 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:37,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:37,643 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:37,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:23:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:38,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:23:38,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:38,679 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 23:23:38,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:38,799 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 23:23:38,799 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:38,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127504068] [2021-10-28 23:23:38,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127504068] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:38,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:38,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 3] imperfect sequences [] total 9 [2021-10-28 23:23:38,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398460065] [2021-10-28 23:23:38,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:23:38,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:38,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:23:38,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:23:38,801 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 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 23:23:39,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:39,256 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2021-10-28 23:23:39,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:23:39,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 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 29 [2021-10-28 23:23:39,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:39,258 INFO L225 Difference]: With dead ends: 87 [2021-10-28 23:23:39,258 INFO L226 Difference]: Without dead ends: 58 [2021-10-28 23:23:39,259 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:23:39,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-28 23:23:39,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-10-28 23:23:39,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 57 states have internal predecessors, (62), 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 23:23:39,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-10-28 23:23:39,281 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 29 [2021-10-28 23:23:39,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:39,282 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-10-28 23:23:39,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 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 23:23:39,282 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-10-28 23:23:39,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 23:23:39,284 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:39,285 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:39,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:39,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:39,499 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:39,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:39,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1012014150, now seen corresponding path program 1 times [2021-10-28 23:23:39,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:39,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954872932] [2021-10-28 23:23:39,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:39,501 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:39,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:39,505 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:39,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:23:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:39,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:23:39,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:40,397 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 23:23:40,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:40,600 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 23:23:40,601 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:40,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954872932] [2021-10-28 23:23:40,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954872932] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:40,601 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:40,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 11 [2021-10-28 23:23:40,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328532591] [2021-10-28 23:23:40,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:23:40,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:40,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:23:40,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:23:40,603 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 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 23:23:41,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:41,100 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2021-10-28 23:23:41,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:23:41,101 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-10-28 23:23:41,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:41,102 INFO L225 Difference]: With dead ends: 66 [2021-10-28 23:23:41,102 INFO L226 Difference]: Without dead ends: 44 [2021-10-28 23:23:41,102 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:23:41,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-28 23:23:41,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-10-28 23:23:41,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 43 states have internal predecessors, (46), 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 23:23:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2021-10-28 23:23:41,109 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 30 [2021-10-28 23:23:41,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:41,110 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2021-10-28 23:23:41,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 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 23:23:41,110 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2021-10-28 23:23:41,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 23:23:41,112 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:41,112 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:41,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-28 23:23:41,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:41,327 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:41,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:41,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1443290351, now seen corresponding path program 1 times [2021-10-28 23:23:41,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:41,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758504385] [2021-10-28 23:23:41,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:41,329 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:41,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:41,340 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:41,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:23:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:41,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:23:41,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:43,044 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:43,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:44,234 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:44,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758504385] [2021-10-28 23:23:44,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758504385] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:23:44,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:23:44,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2021-10-28 23:23:44,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443563619] [2021-10-28 23:23:44,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:23:44,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:44,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:23:44,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:23:44,250 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 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 23:23:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:45,717 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2021-10-28 23:23:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:23:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 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 33 [2021-10-28 23:23:45,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:45,719 INFO L225 Difference]: With dead ends: 81 [2021-10-28 23:23:45,719 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 23:23:45,720 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:23:45,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 23:23:45,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-28 23:23:45,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 1.08) internal successors, (54), 51 states have internal predecessors, (54), 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 23:23:45,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2021-10-28 23:23:45,741 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 33 [2021-10-28 23:23:45,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:45,742 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2021-10-28 23:23:45,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 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 23:23:45,742 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2021-10-28 23:23:45,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 23:23:45,747 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:45,748 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 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 23:23:45,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:45,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:45,974 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:45,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:45,974 INFO L85 PathProgramCache]: Analyzing trace with hash -377440759, now seen corresponding path program 2 times [2021-10-28 23:23:45,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:45,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934394014] [2021-10-28 23:23:45,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:23:45,976 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:45,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:45,995 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:46,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:23:46,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:23:46,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:23:46,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:23:46,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:48,077 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-10-28 23:23:48,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-10-28 23:23:49,095 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:49,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934394014] [2021-10-28 23:23:49,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934394014] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:49,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:49,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 18 [2021-10-28 23:23:49,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227964490] [2021-10-28 23:23:49,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:23:49,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:49,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:23:49,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:23:49,103 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:50,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:50,419 INFO L93 Difference]: Finished difference Result 73 states and 76 transitions. [2021-10-28 23:23:50,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:23:50,420 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-28 23:23:50,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:50,421 INFO L225 Difference]: With dead ends: 73 [2021-10-28 23:23:50,421 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 23:23:50,422 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:23:50,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 23:23:50,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2021-10-28 23:23:50,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.0784313725490196) internal successors, (55), 52 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 23:23:50,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2021-10-28 23:23:50,439 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 41 [2021-10-28 23:23:50,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:50,442 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2021-10-28 23:23:50,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:50,442 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2021-10-28 23:23:50,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-28 23:23:50,452 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:50,453 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 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 23:23:50,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:50,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:50,672 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:50,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:50,673 INFO L85 PathProgramCache]: Analyzing trace with hash -968074037, now seen corresponding path program 1 times [2021-10-28 23:23:50,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:50,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771113741] [2021-10-28 23:23:50,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:50,674 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:50,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:50,677 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:50,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 23:23:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:51,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:23:51,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:23:53,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:55,377 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:23:55,378 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:55,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771113741] [2021-10-28 23:23:55,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771113741] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:23:55,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:23:55,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2021-10-28 23:23:55,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405700728] [2021-10-28 23:23:55,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 23:23:55,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:55,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 23:23:55,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:23:55,382 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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 23:23:57,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:57,105 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2021-10-28 23:23:57,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:23:57,106 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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 43 [2021-10-28 23:23:57,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:57,107 INFO L225 Difference]: With dead ends: 87 [2021-10-28 23:23:57,107 INFO L226 Difference]: Without dead ends: 57 [2021-10-28 23:23:57,108 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=248, Invalid=942, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 23:23:57,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-28 23:23:57,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-28 23:23:57,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.0727272727272728) internal successors, (59), 56 states have internal predecessors, (59), 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 23:23:57,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2021-10-28 23:23:57,123 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 43 [2021-10-28 23:23:57,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:57,123 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2021-10-28 23:23:57,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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 23:23:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2021-10-28 23:23:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-28 23:23:57,125 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:57,125 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 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 23:23:57,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:57,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:57,346 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:23:57,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:57,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1995109817, now seen corresponding path program 2 times [2021-10-28 23:23:57,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:57,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148153335] [2021-10-28 23:23:57,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:23:57,362 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:57,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:57,363 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:57,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 23:23:58,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:23:58,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 23:23:58,597 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:23:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:23:59,594 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:23:59,602 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:23:59,604 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:59,616 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:59,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:59,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:59,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:59,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:59,843 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:59,857 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:24:00,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:24:00 BoogieIcfgContainer [2021-10-28 23:24:00,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:24:00,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:24:00,063 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:24:00,063 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:24:00,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:23:31" (3/4) ... [2021-10-28 23:24:00,067 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:24:00,237 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:24:00,237 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:24:00,239 INFO L168 Benchmark]: Toolchain (without parser) took 32894.26 ms. Allocated memory was 56.6 MB in the beginning and 121.6 MB in the end (delta: 65.0 MB). Free memory was 29.0 MB in the beginning and 45.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 47.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:00,240 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 56.6 MB. Free memory was 37.5 MB in the beginning and 37.5 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:24:00,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2541.87 ms. Allocated memory was 56.6 MB in the beginning and 100.7 MB in the end (delta: 44.0 MB). Free memory was 28.8 MB in the beginning and 46.4 MB in the end (delta: -17.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:00,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 230.00 ms. Allocated memory is still 100.7 MB. Free memory was 46.4 MB in the beginning and 65.6 MB in the end (delta: -19.3 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:00,244 INFO L168 Benchmark]: Boogie Preprocessor took 107.77 ms. Allocated memory is still 100.7 MB. Free memory was 65.6 MB in the beginning and 62.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:00,247 INFO L168 Benchmark]: RCFGBuilder took 841.23 ms. Allocated memory is still 100.7 MB. Free memory was 62.8 MB in the beginning and 44.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:00,248 INFO L168 Benchmark]: TraceAbstraction took 28990.66 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 43.9 MB in the beginning and 51.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:00,248 INFO L168 Benchmark]: Witness Printer took 174.43 ms. Allocated memory is still 121.6 MB. Free memory was 51.8 MB in the beginning and 45.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:00,252 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 56.6 MB. Free memory was 37.5 MB in the beginning and 37.5 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2541.87 ms. Allocated memory was 56.6 MB in the beginning and 100.7 MB in the end (delta: 44.0 MB). Free memory was 28.8 MB in the beginning and 46.4 MB in the end (delta: -17.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 230.00 ms. Allocated memory is still 100.7 MB. Free memory was 46.4 MB in the beginning and 65.6 MB in the end (delta: -19.3 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 107.77 ms. Allocated memory is still 100.7 MB. Free memory was 65.6 MB in the beginning and 62.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 841.23 ms. Allocated memory is still 100.7 MB. Free memory was 62.8 MB in the beginning and 44.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28990.66 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 43.9 MB in the beginning and 51.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Witness Printer took 174.43 ms. Allocated memory is still 121.6 MB. Free memory was 51.8 MB in the beginning and 45.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * 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 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5906] short d1[160]; [L5907] short d2[160]; [L5908] int c = __VERIFIER_nondet_int(); [L211] COND FALSE !(!cond) [L5911] unsigned size = __VERIFIER_nondet_uint(); [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L5871] COND TRUE n > 0 [L5872] char *sp = (char *)s; [L5873] unsigned long i = 0; [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND FALSE !(i < n) [L5876] return s; [L211] COND FALSE !(!cond) [L223] COND FALSE !(!cond) [L5884] size_t num_uint64s = n >> 3; [L5885] size_t rem = n & 0x7; [L223] COND FALSE !(!cond) [L5888] uint64_t *d = (uint64_t *)dst; [L5890] size_t i = 0; [L5890] COND TRUE i < num_uint64s [L5891] d[i] = 0 [L5890] ++i [L5890] COND FALSE !(i < num_uint64s) [L5894] return dst; [L223] COND FALSE !(!cond) [L5655-L5658] COND TRUE len > 0 && a != ((void *)0) && b != ((void *)0) [L266] return __VERIFIER_nondet_ulong(); [L5660] size_t i = nondet_uint64_t(); [L211] COND FALSE !(!cond) [L5664] a[i] [L5664] b[i] [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 28.6s, OverallIterations: 11, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 1091 SDslu, 1229 SDs, 0 SdLazy, 908 SolverSat, 118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 588 GetRequests, 441 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=6, InterpolantAutomatonStates: 93, 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, 10 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 324 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 534 ConstructedInterpolants, 39 QuantifiedInterpolants, 2828 SizeOfPredicates, 75 NumberOfNonLiveVariables, 1073 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 20 InterpolantComputations, 16 PerfectInterpolantSequences, 74/154 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:24:00,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3adc43a4-a690-4f0d-9fb5-4a9f834ba6c6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...