./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/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_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU --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 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:18:48,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:18:48,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:18:48,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:18:48,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:18:48,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:18:48,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:18:48,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:18:48,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:18:48,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:18:48,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:18:48,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:18:48,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:18:48,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:18:48,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:18:48,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:18:48,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:18:48,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:18:48,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:18:48,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:18:48,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:18:48,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:18:48,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:18:48,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:18:48,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:18:48,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:18:48,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:18:48,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:18:48,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:18:48,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:18:48,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:18:48,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:18:48,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:18:48,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:18:48,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:18:48,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:18:48,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:18:48,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:18:48,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:18:48,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:18:48,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:18:48,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 23:18:48,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:18:48,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:18:48,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:18:48,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:18:48,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:18:48,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:18:48,171 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:18:48,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:18:48,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:18:48,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:18:48,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:18:48,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:18:48,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:18:48,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:18:48,174 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:18:48,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:18:48,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:18:48,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:18:48,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:18:48,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:18:48,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:18:48,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:18:48,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:18:48,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:18:48,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:18:48,176 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:18:48,177 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:18:48,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:18:48,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:18:48,177 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_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2021-11-02 23:18:48,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:18:48,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:18:48,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:18:48,458 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:18:48,460 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:18:48,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-11-02 23:18:48,529 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/data/e979ffe38/749378d49705437a983ecb94965404a4/FLAG433ed9d6e [2021-11-02 23:18:49,181 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:18:49,182 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-11-02 23:18:49,218 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/data/e979ffe38/749378d49705437a983ecb94965404a4/FLAG433ed9d6e [2021-11-02 23:18:49,355 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/data/e979ffe38/749378d49705437a983ecb94965404a4 [2021-11-02 23:18:49,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:18:49,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:18:49,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:18:49,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:18:49,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:18:49,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:18:49" (1/1) ... [2021-11-02 23:18:49,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c7f6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:49, skipping insertion in model container [2021-11-02 23:18:49,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:18:49" (1/1) ... [2021-11-02 23:18:49,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:18:49,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:18:49,726 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_daccfe8d-6888-48b5-806a-3d36fa668032/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-11-02 23:18:49,732 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_daccfe8d-6888-48b5-806a-3d36fa668032/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-11-02 23:18:49,750 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-02 23:18:49,754 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-02 23:18:50,349 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,349 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,350 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,351 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,351 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,365 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,365 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,368 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,372 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,533 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-02 23:18:50,534 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-02 23:18:50,535 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-02 23:18:50,536 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-02 23:18:50,538 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-02 23:18:50,539 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-02 23:18:50,539 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-02 23:18:50,540 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-02 23:18:50,540 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-02 23:18:50,541 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-02 23:18:50,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:18:50,611 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:18:50,624 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-11-02 23:18:50,625 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_daccfe8d-6888-48b5-806a-3d36fa668032/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-11-02 23:18:50,626 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-02 23:18:50,627 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-02 23:18:50,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,674 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,683 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,683 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,684 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,686 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:50,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-02 23:18:50,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-02 23:18:50,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-02 23:18:50,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-02 23:18:50,718 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-02 23:18:50,718 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-02 23:18:50,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-02 23:18:50,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-02 23:18:50,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-02 23:18:50,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-02 23:18:50,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:18:50,931 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:18:50,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50 WrapperNode [2021-11-02 23:18:50,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:18:50,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:18:50,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:18:50,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:18:50,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50" (1/1) ... [2021-11-02 23:18:51,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50" (1/1) ... [2021-11-02 23:18:51,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:18:51,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:18:51,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:18:51,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:18:51,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50" (1/1) ... [2021-11-02 23:18:51,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50" (1/1) ... [2021-11-02 23:18:51,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50" (1/1) ... [2021-11-02 23:18:51,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50" (1/1) ... [2021-11-02 23:18:51,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50" (1/1) ... [2021-11-02 23:18:51,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50" (1/1) ... [2021-11-02 23:18:51,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50" (1/1) ... [2021-11-02 23:18:51,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:18:51,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:18:51,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:18:51,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:18:51,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50" (1/1) ... [2021-11-02 23:18:51,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:18:51,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:18:51,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:18:51,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:18:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:18:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:18:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:18:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:18:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:18:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:18:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:18:51,812 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:18:51,813 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-11-02 23:18:51,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:18:51 BoogieIcfgContainer [2021-11-02 23:18:51,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:18:51,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:18:51,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:18:51,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:18:51,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:18:49" (1/3) ... [2021-11-02 23:18:51,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe20f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:18:51, skipping insertion in model container [2021-11-02 23:18:51,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:50" (2/3) ... [2021-11-02 23:18:51,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe20f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:18:51, skipping insertion in model container [2021-11-02 23:18:51,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:18:51" (3/3) ... [2021-11-02 23:18:51,825 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2021-11-02 23:18:51,830 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:18:51,830 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-02 23:18:51,869 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:18:51,875 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 23:18:51,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-02 23:18:51,890 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) [2021-11-02 23:18:51,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-02 23:18:51,894 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:51,895 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:18:51,895 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)] === [2021-11-02 23:18:51,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:51,900 INFO L85 PathProgramCache]: Analyzing trace with hash -2009978325, now seen corresponding path program 1 times [2021-11-02 23:18:51,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:51,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257973183] [2021-11-02 23:18:51,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:51,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:52,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:52,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:52,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257973183] [2021-11-02 23:18:52,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257973183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:52,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:52,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:18:52,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299252773] [2021-11-02 23:18:52,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 23:18:52,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:52,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 23:18:52,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:18:52,183 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) [2021-11-02 23:18:52,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:52,201 INFO L93 Difference]: Finished difference Result 103 states and 138 transitions. [2021-11-02 23:18:52,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:18:52,203 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 [2021-11-02 23:18:52,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:52,210 INFO L225 Difference]: With dead ends: 103 [2021-11-02 23:18:52,210 INFO L226 Difference]: Without dead ends: 47 [2021-11-02 23:18:52,213 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:18:52,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-02 23:18:52,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-11-02 23:18:52,241 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) [2021-11-02 23:18:52,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2021-11-02 23:18:52,244 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 16 [2021-11-02 23:18:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:52,244 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2021-11-02 23:18:52,244 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) [2021-11-02 23:18:52,245 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2021-11-02 23:18:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-02 23:18:52,245 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:52,246 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:18:52,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:18:52,246 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)] === [2021-11-02 23:18:52,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:52,247 INFO L85 PathProgramCache]: Analyzing trace with hash 329723105, now seen corresponding path program 1 times [2021-11-02 23:18:52,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:52,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304386323] [2021-11-02 23:18:52,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:52,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:52,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:52,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:52,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304386323] [2021-11-02 23:18:52,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304386323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:52,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:52,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 23:18:52,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446969655] [2021-11-02 23:18:52,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 23:18:52,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:52,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 23:18:52,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-02 23:18:52,591 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) [2021-11-02 23:18:52,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:52,735 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2021-11-02 23:18:52,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 23:18:52,735 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 [2021-11-02 23:18:52,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:52,736 INFO L225 Difference]: With dead ends: 47 [2021-11-02 23:18:52,737 INFO L226 Difference]: Without dead ends: 45 [2021-11-02 23:18:52,738 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 [2021-11-02 23:18:52,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-02 23:18:52,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-02 23:18:52,743 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) [2021-11-02 23:18:52,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-11-02 23:18:52,744 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 16 [2021-11-02 23:18:52,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:52,745 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-11-02 23:18:52,746 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) [2021-11-02 23:18:52,746 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-11-02 23:18:52,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-02 23:18:52,748 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:52,748 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:18:52,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:18:52,749 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)] === [2021-11-02 23:18:52,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:52,750 INFO L85 PathProgramCache]: Analyzing trace with hash -963549789, now seen corresponding path program 1 times [2021-11-02 23:18:52,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:52,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136943497] [2021-11-02 23:18:52,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:52,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:18:52,869 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:18:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:18:52,945 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:18:52,945 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-02 23:18:52,946 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:18:52,948 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:18:52,948 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:18:52,948 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:18:52,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:18:52,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:18:52,952 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-02 23:18:52,955 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 23:18:52,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:18:52 BoogieIcfgContainer [2021-11-02 23:18:52,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 23:18:52,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:18:52,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:18:52,986 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:18:52,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:18:51" (3/4) ... [2021-11-02 23:18:52,989 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 23:18:52,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:18:52,991 INFO L168 Benchmark]: Toolchain (without parser) took 3628.25 ms. Allocated memory was 121.6 MB in the beginning and 245.4 MB in the end (delta: 123.7 MB). Free memory was 77.4 MB in the beginning and 190.4 MB in the end (delta: -113.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-11-02 23:18:52,991 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 121.6 MB. Free memory was 98.9 MB in the beginning and 98.8 MB in the end (delta: 69.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:18:52,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1565.07 ms. Allocated memory was 121.6 MB in the beginning and 165.7 MB in the end (delta: 44.0 MB). Free memory was 77.2 MB in the beginning and 88.4 MB in the end (delta: -11.3 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-11-02 23:18:52,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 171.75 ms. Allocated memory is still 165.7 MB. Free memory was 88.4 MB in the beginning and 83.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:18:52,993 INFO L168 Benchmark]: Boogie Preprocessor took 69.13 ms. Allocated memory is still 165.7 MB. Free memory was 83.6 MB in the beginning and 81.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:18:52,994 INFO L168 Benchmark]: RCFGBuilder took 640.26 ms. Allocated memory is still 165.7 MB. Free memory was 81.5 MB in the beginning and 111.5 MB in the end (delta: -30.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:18:52,995 INFO L168 Benchmark]: TraceAbstraction took 1168.68 ms. Allocated memory was 165.7 MB in the beginning and 245.4 MB in the end (delta: 79.7 MB). Free memory was 111.5 MB in the beginning and 191.4 MB in the end (delta: -79.9 MB). Peak memory consumption was 1.8 MB. Max. memory is 16.1 GB. [2021-11-02 23:18:52,995 INFO L168 Benchmark]: Witness Printer took 3.82 ms. Allocated memory is still 245.4 MB. Free memory was 191.4 MB in the beginning and 190.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:18:52,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 121.6 MB. Free memory was 98.9 MB in the beginning and 98.8 MB in the end (delta: 69.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1565.07 ms. Allocated memory was 121.6 MB in the beginning and 165.7 MB in the end (delta: 44.0 MB). Free memory was 77.2 MB in the beginning and 88.4 MB in the end (delta: -11.3 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 171.75 ms. Allocated memory is still 165.7 MB. Free memory was 88.4 MB in the beginning and 83.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.13 ms. Allocated memory is still 165.7 MB. Free memory was 83.6 MB in the beginning and 81.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 640.26 ms. Allocated memory is still 165.7 MB. Free memory was 81.5 MB in the beginning and 111.5 MB in the end (delta: -30.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1168.68 ms. Allocated memory was 165.7 MB in the beginning and 245.4 MB in the end (delta: 79.7 MB). Free memory was 111.5 MB in the beginning and 191.4 MB in the end (delta: -79.9 MB). Peak memory consumption was 1.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.82 ms. Allocated memory is still 245.4 MB. Free memory was 191.4 MB in the beginning and 190.4 MB in the end (delta: 1.0 MB). There was no memory consumed. 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: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, 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, 0.3s 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 [2021-11-02 23:18:53,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/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_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU --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 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:18:55,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:18:55,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:18:55,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:18:55,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:18:55,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:18:55,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:18:55,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:18:55,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:18:55,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:18:55,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:18:55,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:18:55,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:18:55,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:18:55,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:18:55,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:18:55,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:18:55,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:18:55,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:18:55,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:18:55,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:18:55,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:18:55,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:18:55,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:18:55,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:18:55,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:18:55,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:18:55,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:18:55,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:18:55,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:18:55,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:18:55,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:18:55,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:18:55,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:18:55,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:18:55,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:18:55,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:18:55,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:18:55,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:18:55,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:18:55,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:18:55,477 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-02 23:18:55,535 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:18:55,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:18:55,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:18:55,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:18:55,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:18:55,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:18:55,537 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:18:55,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:18:55,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:18:55,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:18:55,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:18:55,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:18:55,539 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-02 23:18:55,539 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-02 23:18:55,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:18:55,540 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:18:55,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:18:55,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:18:55,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:18:55,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:18:55,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:18:55,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:18:55,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:18:55,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:18:55,544 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-02 23:18:55,544 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-02 23:18:55,545 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:18:55,545 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:18:55,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:18:55,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:18:55,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-02 23:18:55,546 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_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2021-11-02 23:18:55,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:18:55,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:18:55,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:18:55,883 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:18:55,883 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:18:55,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-11-02 23:18:55,953 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/data/041a92084/71ee1979471e46018d7718e321e6674c/FLAGeb270f127 [2021-11-02 23:18:56,651 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:18:56,652 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-11-02 23:18:56,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/data/041a92084/71ee1979471e46018d7718e321e6674c/FLAGeb270f127 [2021-11-02 23:18:56,771 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/data/041a92084/71ee1979471e46018d7718e321e6674c [2021-11-02 23:18:56,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:18:56,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:18:56,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:18:56,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:18:56,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:18:56,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:18:56" (1/1) ... [2021-11-02 23:18:56,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@396ec84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:56, skipping insertion in model container [2021-11-02 23:18:56,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:18:56" (1/1) ... [2021-11-02 23:18:56,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:18:56,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:18:57,207 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_daccfe8d-6888-48b5-806a-3d36fa668032/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-11-02 23:18:57,212 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_daccfe8d-6888-48b5-806a-3d36fa668032/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-11-02 23:18:57,228 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-02 23:18:57,232 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-02 23:18:57,844 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,845 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,845 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,847 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,867 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,874 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,877 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,881 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:57,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-02 23:18:58,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-02 23:18:58,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-02 23:18:58,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-02 23:18:58,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-02 23:18:58,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-02 23:18:58,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-02 23:18:58,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-02 23:18:58,076 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-02 23:18:58,077 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-02 23:18:58,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:18:58,197 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:18:58,236 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_daccfe8d-6888-48b5-806a-3d36fa668032/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-11-02 23:18:58,237 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_daccfe8d-6888-48b5-806a-3d36fa668032/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-11-02 23:18:58,239 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-02 23:18:58,240 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-02 23:18:58,287 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:18:58,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-02 23:18:58,348 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-02 23:18:58,349 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-02 23:18:58,350 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-02 23:18:58,351 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-02 23:18:58,355 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-02 23:18:58,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-02 23:18:58,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-02 23:18:58,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-02 23:18:58,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-02 23:18:58,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:18:58,601 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:18:58,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58 WrapperNode [2021-11-02 23:18:58,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:18:58,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:18:58,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:18:58,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:18:58,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58" (1/1) ... [2021-11-02 23:18:58,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58" (1/1) ... [2021-11-02 23:18:58,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:18:58,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:18:58,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:18:58,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:18:58,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58" (1/1) ... [2021-11-02 23:18:58,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58" (1/1) ... [2021-11-02 23:18:58,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58" (1/1) ... [2021-11-02 23:18:58,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58" (1/1) ... [2021-11-02 23:18:58,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58" (1/1) ... [2021-11-02 23:18:58,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58" (1/1) ... [2021-11-02 23:18:58,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58" (1/1) ... [2021-11-02 23:18:58,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:18:58,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:18:58,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:18:58,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:18:58,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58" (1/1) ... [2021-11-02 23:18:58,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:18:58,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:18:58,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:18:58,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:18:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:18:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-02 23:18:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:18:58,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:18:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-02 23:18:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:18:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-02 23:18:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-02 23:18:59,445 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:18:59,445 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-11-02 23:18:59,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:18:59 BoogieIcfgContainer [2021-11-02 23:18:59,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:18:59,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:18:59,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:18:59,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:18:59,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:18:56" (1/3) ... [2021-11-02 23:18:59,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a052b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:18:59, skipping insertion in model container [2021-11-02 23:18:59,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:18:58" (2/3) ... [2021-11-02 23:18:59,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a052b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:18:59, skipping insertion in model container [2021-11-02 23:18:59,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:18:59" (3/3) ... [2021-11-02 23:18:59,455 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2021-11-02 23:18:59,460 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:18:59,460 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-02 23:18:59,505 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:18:59,511 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 23:18:59,511 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-02 23:18:59,525 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) [2021-11-02 23:18:59,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-02 23:18:59,552 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:59,553 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:18:59,553 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)] === [2021-11-02 23:18:59,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:59,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2009978325, now seen corresponding path program 1 times [2021-11-02 23:18:59,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:18:59,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121748007] [2021-11-02 23:18:59,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:59,572 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:18:59,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:18:59,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:18:59,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-02 23:18:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:59,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-02 23:18:59,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:18:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:59,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:18:59,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:59,860 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:18:59,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121748007] [2021-11-02 23:18:59,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121748007] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:59,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:59,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-02 23:18:59,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709492517] [2021-11-02 23:18:59,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 23:18:59,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:18:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 23:18:59,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:18:59,883 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) [2021-11-02 23:18:59,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:59,900 INFO L93 Difference]: Finished difference Result 103 states and 138 transitions. [2021-11-02 23:18:59,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:18:59,901 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 [2021-11-02 23:18:59,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:59,909 INFO L225 Difference]: With dead ends: 103 [2021-11-02 23:18:59,909 INFO L226 Difference]: Without dead ends: 47 [2021-11-02 23:18:59,912 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 [2021-11-02 23:18:59,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-02 23:18:59,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-11-02 23:18:59,939 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) [2021-11-02 23:18:59,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2021-11-02 23:18:59,942 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 16 [2021-11-02 23:18:59,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:59,942 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2021-11-02 23:18:59,942 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) [2021-11-02 23:18:59,943 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2021-11-02 23:18:59,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-02 23:18:59,943 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:59,944 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:18:59,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:00,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:00,163 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)] === [2021-11-02 23:19:00,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:00,163 INFO L85 PathProgramCache]: Analyzing trace with hash 329723105, now seen corresponding path program 1 times [2021-11-02 23:19:00,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:00,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570023662] [2021-11-02 23:19:00,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:00,164 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:00,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:00,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:00,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-02 23:19:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:00,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 23:19:00,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:19:00,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:00,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:19:00,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:00,600 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:19:00,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570023662] [2021-11-02 23:19:00,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570023662] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:00,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:00,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-02 23:19:00,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874943055] [2021-11-02 23:19:00,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 23:19:00,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:19:00,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 23:19:00,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-02 23:19:00,604 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) [2021-11-02 23:19:00,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:00,811 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2021-11-02 23:19:00,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:19:00,812 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 [2021-11-02 23:19:00,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:00,813 INFO L225 Difference]: With dead ends: 47 [2021-11-02 23:19:00,813 INFO L226 Difference]: Without dead ends: 45 [2021-11-02 23:19:00,814 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 [2021-11-02 23:19:00,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-02 23:19:00,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-02 23:19:00,823 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) [2021-11-02 23:19:00,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-11-02 23:19:00,824 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 16 [2021-11-02 23:19:00,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:00,825 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-11-02 23:19:00,826 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) [2021-11-02 23:19:00,826 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-11-02 23:19:00,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-02 23:19:00,828 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:00,828 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:19:00,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:01,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:01,041 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)] === [2021-11-02 23:19:01,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:01,044 INFO L85 PathProgramCache]: Analyzing trace with hash -963549789, now seen corresponding path program 1 times [2021-11-02 23:19:01,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:01,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733569671] [2021-11-02 23:19:01,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:01,048 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:01,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:01,050 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:01,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-02 23:19:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:01,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-02 23:19:01,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:19:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:01,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:19:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:01,728 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:19:01,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733569671] [2021-11-02 23:19:01,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733569671] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:01,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:01,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-02 23:19:01,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886721223] [2021-11-02 23:19:01,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:19:01,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:19:01,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:19:01,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:19:01,737 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) [2021-11-02 23:19:02,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:02,016 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2021-11-02 23:19:02,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:19:02,017 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 [2021-11-02 23:19:02,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:02,018 INFO L225 Difference]: With dead ends: 45 [2021-11-02 23:19:02,018 INFO L226 Difference]: Without dead ends: 43 [2021-11-02 23:19:02,019 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-02 23:19:02,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-02 23:19:02,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-02 23:19:02,023 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) [2021-11-02 23:19:02,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2021-11-02 23:19:02,024 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 18 [2021-11-02 23:19:02,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:02,025 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2021-11-02 23:19:02,031 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) [2021-11-02 23:19:02,031 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2021-11-02 23:19:02,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-02 23:19:02,032 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:02,032 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] [2021-11-02 23:19:02,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:02,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:02,247 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)] === [2021-11-02 23:19:02,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:02,248 INFO L85 PathProgramCache]: Analyzing trace with hash -59070895, now seen corresponding path program 1 times [2021-11-02 23:19:02,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:02,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732324593] [2021-11-02 23:19:02,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:02,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:02,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:02,251 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:02,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-02 23:19:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:02,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-02 23:19:02,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:19:02,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:02,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:19:02,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:02,830 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:19:02,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732324593] [2021-11-02 23:19:02,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732324593] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:02,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:02,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-02 23:19:02,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655426962] [2021-11-02 23:19:02,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 23:19:02,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:19:02,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:19:02,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:19:02,836 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) [2021-11-02 23:19:02,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:02,915 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-11-02 23:19:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:19:02,919 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 [2021-11-02 23:19:02,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:02,919 INFO L225 Difference]: With dead ends: 48 [2021-11-02 23:19:02,919 INFO L226 Difference]: Without dead ends: 46 [2021-11-02 23:19:02,920 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 [2021-11-02 23:19:02,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-02 23:19:02,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2021-11-02 23:19:02,925 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) [2021-11-02 23:19:02,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2021-11-02 23:19:02,926 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 23 [2021-11-02 23:19:02,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:02,926 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2021-11-02 23:19:02,926 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) [2021-11-02 23:19:02,926 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2021-11-02 23:19:02,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-02 23:19:02,929 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:02,929 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:19:02,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:03,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:03,130 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)] === [2021-11-02 23:19:03,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:03,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1945883960, now seen corresponding path program 1 times [2021-11-02 23:19:03,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:03,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807753101] [2021-11-02 23:19:03,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:03,132 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:03,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:03,133 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:03,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-02 23:19:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:03,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-02 23:19:03,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:19:03,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:03,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:19:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:03,770 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:19:03,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807753101] [2021-11-02 23:19:03,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807753101] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:03,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:03,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 11 [2021-11-02 23:19:03,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827121969] [2021-11-02 23:19:03,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:19:03,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:19:03,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:19:03,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:19:03,772 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) [2021-11-02 23:19:04,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:04,304 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2021-11-02 23:19:04,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-02 23:19:04,306 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 [2021-11-02 23:19:04,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:04,307 INFO L225 Difference]: With dead ends: 78 [2021-11-02 23:19:04,307 INFO L226 Difference]: Without dead ends: 63 [2021-11-02 23:19:04,308 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-11-02 23:19:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-02 23:19:04,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 55. [2021-11-02 23:19:04,315 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) [2021-11-02 23:19:04,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-11-02 23:19:04,316 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 28 [2021-11-02 23:19:04,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:04,316 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-11-02 23:19:04,317 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) [2021-11-02 23:19:04,317 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-11-02 23:19:04,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-02 23:19:04,318 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:04,318 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] [2021-11-02 23:19:04,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:04,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:04,533 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)] === [2021-11-02 23:19:04,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:04,534 INFO L85 PathProgramCache]: Analyzing trace with hash -20878187, now seen corresponding path program 1 times [2021-11-02 23:19:04,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:04,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198642371] [2021-11-02 23:19:04,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:04,535 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:04,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:04,536 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:04,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-02 23:19:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:04,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-02 23:19:04,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:19:05,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:05,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:19:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:05,141 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:19:05,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198642371] [2021-11-02 23:19:05,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198642371] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:05,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:05,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 3] imperfect sequences [] total 9 [2021-11-02 23:19:05,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851875318] [2021-11-02 23:19:05,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:19:05,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:19:05,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:19:05,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:19:05,144 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) [2021-11-02 23:19:05,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:05,444 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2021-11-02 23:19:05,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 23:19:05,444 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 [2021-11-02 23:19:05,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:05,445 INFO L225 Difference]: With dead ends: 87 [2021-11-02 23:19:05,445 INFO L226 Difference]: Without dead ends: 58 [2021-11-02 23:19:05,446 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-11-02 23:19:05,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-02 23:19:05,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-11-02 23:19:05,454 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) [2021-11-02 23:19:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-11-02 23:19:05,455 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 29 [2021-11-02 23:19:05,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:05,455 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-11-02 23:19:05,455 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) [2021-11-02 23:19:05,455 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-11-02 23:19:05,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-02 23:19:05,456 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:05,457 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:19:05,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:05,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:05,675 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)] === [2021-11-02 23:19:05,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:05,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1012014150, now seen corresponding path program 1 times [2021-11-02 23:19:05,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:05,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313379332] [2021-11-02 23:19:05,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:05,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:05,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:05,677 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:05,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-02 23:19:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:05,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-02 23:19:05,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:19:06,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:06,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:19:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:06,308 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:19:06,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313379332] [2021-11-02 23:19:06,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313379332] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:06,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:06,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 11 [2021-11-02 23:19:06,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143370698] [2021-11-02 23:19:06,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:19:06,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:19:06,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:19:06,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:19:06,310 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) [2021-11-02 23:19:06,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:06,751 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2021-11-02 23:19:06,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-02 23:19:06,751 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 [2021-11-02 23:19:06,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:06,752 INFO L225 Difference]: With dead ends: 66 [2021-11-02 23:19:06,752 INFO L226 Difference]: Without dead ends: 44 [2021-11-02 23:19:06,753 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-11-02 23:19:06,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-02 23:19:06,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-02 23:19:06,757 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) [2021-11-02 23:19:06,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2021-11-02 23:19:06,758 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 30 [2021-11-02 23:19:06,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:06,759 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2021-11-02 23:19:06,759 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) [2021-11-02 23:19:06,759 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2021-11-02 23:19:06,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-02 23:19:06,760 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:06,760 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] [2021-11-02 23:19:06,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:06,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:06,966 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)] === [2021-11-02 23:19:06,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:06,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1443290351, now seen corresponding path program 1 times [2021-11-02 23:19:06,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:06,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523117727] [2021-11-02 23:19:06,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:06,968 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:06,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:06,969 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:07,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-02 23:19:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:07,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-02 23:19:07,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:19:07,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:07,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:19:08,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:08,233 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:19:08,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523117727] [2021-11-02 23:19:08,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523117727] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-02 23:19:08,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:19:08,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2021-11-02 23:19:08,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540331421] [2021-11-02 23:19:08,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-02 23:19:08,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:19:08,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-02 23:19:08,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-11-02 23:19:08,236 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) [2021-11-02 23:19:09,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:09,045 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2021-11-02 23:19:09,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-02 23:19:09,053 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 [2021-11-02 23:19:09,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:09,054 INFO L225 Difference]: With dead ends: 81 [2021-11-02 23:19:09,054 INFO L226 Difference]: Without dead ends: 52 [2021-11-02 23:19:09,055 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:19:09,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-02 23:19:09,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-02 23:19:09,062 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) [2021-11-02 23:19:09,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2021-11-02 23:19:09,062 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 33 [2021-11-02 23:19:09,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:09,063 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2021-11-02 23:19:09,063 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) [2021-11-02 23:19:09,063 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2021-11-02 23:19:09,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-02 23:19:09,070 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:09,070 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] [2021-11-02 23:19:09,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:09,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:09,272 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)] === [2021-11-02 23:19:09,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:09,272 INFO L85 PathProgramCache]: Analyzing trace with hash -377440759, now seen corresponding path program 2 times [2021-11-02 23:19:09,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:09,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422541005] [2021-11-02 23:19:09,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:19:09,273 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:09,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:09,274 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:09,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-02 23:19:09,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-02 23:19:09,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:19:09,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-02 23:19:09,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:19:10,241 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-02 23:19:10,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:19:10,633 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-02 23:19:10,633 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:19:10,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422541005] [2021-11-02 23:19:10,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422541005] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:10,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:10,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 18 [2021-11-02 23:19:10,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758186706] [2021-11-02 23:19:10,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-02 23:19:10,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:19:10,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-02 23:19:10,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2021-11-02 23:19:10,635 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) [2021-11-02 23:19:11,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:11,319 INFO L93 Difference]: Finished difference Result 73 states and 76 transitions. [2021-11-02 23:19:11,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-02 23:19:11,319 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 [2021-11-02 23:19:11,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:11,320 INFO L225 Difference]: With dead ends: 73 [2021-11-02 23:19:11,320 INFO L226 Difference]: Without dead ends: 54 [2021-11-02 23:19:11,321 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:19:11,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-02 23:19:11,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2021-11-02 23:19:11,331 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) [2021-11-02 23:19:11,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2021-11-02 23:19:11,332 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 41 [2021-11-02 23:19:11,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:11,332 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2021-11-02 23:19:11,332 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) [2021-11-02 23:19:11,333 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2021-11-02 23:19:11,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-02 23:19:11,333 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:11,334 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] [2021-11-02 23:19:11,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:11,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:11,549 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)] === [2021-11-02 23:19:11,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash -968074037, now seen corresponding path program 1 times [2021-11-02 23:19:11,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:11,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705139207] [2021-11-02 23:19:11,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:11,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:11,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:11,553 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:11,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-02 23:19:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:11,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-02 23:19:11,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:19:12,934 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 23:19:12,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:19:13,932 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 23:19:13,932 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:19:13,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705139207] [2021-11-02 23:19:13,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705139207] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-02 23:19:13,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:19:13,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2021-11-02 23:19:13,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761194915] [2021-11-02 23:19:13,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-02 23:19:13,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:19:13,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-02 23:19:13,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2021-11-02 23:19:13,935 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) [2021-11-02 23:19:15,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:15,058 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2021-11-02 23:19:15,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:19:15,058 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 [2021-11-02 23:19:15,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:15,059 INFO L225 Difference]: With dead ends: 87 [2021-11-02 23:19:15,059 INFO L226 Difference]: Without dead ends: 57 [2021-11-02 23:19:15,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=248, Invalid=942, Unknown=0, NotChecked=0, Total=1190 [2021-11-02 23:19:15,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-02 23:19:15,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-02 23:19:15,068 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) [2021-11-02 23:19:15,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2021-11-02 23:19:15,069 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 43 [2021-11-02 23:19:15,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:15,069 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2021-11-02 23:19:15,069 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) [2021-11-02 23:19:15,069 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2021-11-02 23:19:15,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-02 23:19:15,070 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:15,070 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] [2021-11-02 23:19:15,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:15,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:15,285 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)] === [2021-11-02 23:19:15,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:15,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1995109817, now seen corresponding path program 2 times [2021-11-02 23:19:15,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:15,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59443432] [2021-11-02 23:19:15,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:19:15,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:15,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:15,287 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:15,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-02 23:19:15,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:19:15,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-11-02 23:19:15,907 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:19:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:19:16,393 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-02 23:19:16,393 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-02 23:19:16,394 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:16,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:16,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:16,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:16,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:16,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:16,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:16,620 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:19:16,623 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 23:19:16,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:19:16 BoogieIcfgContainer [2021-11-02 23:19:16,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 23:19:16,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:19:16,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:19:16,693 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:19:16,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:18:59" (3/4) ... [2021-11-02 23:19:16,695 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-02 23:19:16,778 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 23:19:16,778 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:19:16,779 INFO L168 Benchmark]: Toolchain (without parser) took 20001.92 ms. Allocated memory was 60.8 MB in the beginning and 115.3 MB in the end (delta: 54.5 MB). Free memory was 33.5 MB in the beginning and 74.6 MB in the end (delta: -41.1 MB). Peak memory consumption was 64.9 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:16,780 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 60.8 MB. Free memory is still 41.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:19:16,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1823.03 ms. Allocated memory was 60.8 MB in the beginning and 115.3 MB in the end (delta: 54.5 MB). Free memory was 33.3 MB in the beginning and 83.7 MB in the end (delta: -50.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:16,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 147.46 ms. Allocated memory is still 115.3 MB. Free memory was 83.7 MB in the beginning and 78.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:16,781 INFO L168 Benchmark]: Boogie Preprocessor took 44.76 ms. Allocated memory is still 115.3 MB. Free memory was 78.9 MB in the beginning and 75.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:16,782 INFO L168 Benchmark]: RCFGBuilder took 651.55 ms. Allocated memory is still 115.3 MB. Free memory was 75.6 MB in the beginning and 57.3 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:16,782 INFO L168 Benchmark]: TraceAbstraction took 17242.87 ms. Allocated memory is still 115.3 MB. Free memory was 56.7 MB in the beginning and 31.2 MB in the end (delta: 25.5 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:16,782 INFO L168 Benchmark]: Witness Printer took 85.98 ms. Allocated memory is still 115.3 MB. Free memory was 31.2 MB in the beginning and 74.6 MB in the end (delta: -43.4 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:16,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 60.8 MB. Free memory is still 41.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1823.03 ms. Allocated memory was 60.8 MB in the beginning and 115.3 MB in the end (delta: 54.5 MB). Free memory was 33.3 MB in the beginning and 83.7 MB in the end (delta: -50.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 147.46 ms. Allocated memory is still 115.3 MB. Free memory was 83.7 MB in the beginning and 78.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.76 ms. Allocated memory is still 115.3 MB. Free memory was 78.9 MB in the beginning and 75.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 651.55 ms. Allocated memory is still 115.3 MB. Free memory was 75.6 MB in the beginning and 57.3 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17242.87 ms. Allocated memory is still 115.3 MB. Free memory was 56.7 MB in the beginning and 31.2 MB in the end (delta: 25.5 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. * Witness Printer took 85.98 ms. Allocated memory is still 115.3 MB. Free memory was 31.2 MB in the beginning and 74.6 MB in the end (delta: -43.4 MB). Peak memory consumption was 7.0 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: 17.1s, OverallIterations: 11, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, 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, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 588 GetRequests, 441 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 5.0s 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: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.7s 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! [2021-11-02 23:19:16,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccfe8d-6888-48b5-806a-3d36fa668032/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE