./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:02:10,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:02:10,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:02:10,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:02:10,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:02:10,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:02:10,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:02:10,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:02:10,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:02:10,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:02:10,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:02:10,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:02:10,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:02:10,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:02:10,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:02:10,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:02:10,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:02:10,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:02:10,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:02:10,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:02:10,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:02:10,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:02:10,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:02:10,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:02:10,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:02:10,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:02:10,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:02:10,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:02:10,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:02:10,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:02:10,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:02:10,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:02:10,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:02:10,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:02:10,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:02:10,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:02:10,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:02:10,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:02:10,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:02:10,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:02:10,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:02:10,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:02:10,333 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:02:10,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:02:10,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:02:10,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:02:10,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:02:10,334 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:02:10,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:02:10,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:02:10,335 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:02:10,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:02:10,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:02:10,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:02:10,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:02:10,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:02:10,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:02:10,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:02:10,337 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:02:10,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:02:10,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:02:10,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:02:10,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:02:10,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:02:10,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:02:10,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:02:10,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:02:10,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:02:10,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:02:10,341 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:02:10,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:02:10,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:02:10,343 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2022-11-20 12:02:10,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:02:10,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:02:10,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:02:10,699 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:02:10,700 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:02:10,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-20 12:02:13,821 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:02:14,234 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:02:14,235 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-20 12:02:14,270 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/data/014b937ed/839e2f24ed20450cbe93fe6489b8d7da/FLAGaa09349e5 [2022-11-20 12:02:14,291 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/data/014b937ed/839e2f24ed20450cbe93fe6489b8d7da [2022-11-20 12:02:14,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:02:14,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:02:14,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:02:14,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:02:14,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:02:14,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:02:14" (1/1) ... [2022-11-20 12:02:14,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1a8b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:14, skipping insertion in model container [2022-11-20 12:02:14,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:02:14" (1/1) ... [2022-11-20 12:02:14,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:02:14,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:02:14,686 WARN L237 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-20 12:02:14,693 WARN L237 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-20 12:02:15,512 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,512 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,513 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,514 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,516 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,532 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,533 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,535 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,536 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,539 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,540 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,541 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,541 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,778 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:02:15,780 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:02:15,781 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:02:15,783 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:02:15,785 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:02:15,785 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:02:15,786 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:02:15,787 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:02:15,788 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:02:15,789 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:02:15,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:02:15,888 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:02:15,919 WARN L237 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-20 12:02:15,927 WARN L237 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-20 12:02:15,981 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,982 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,982 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,983 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,984 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,996 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,996 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,998 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:15,999 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:16,000 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:16,001 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:16,002 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:16,003 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:16,032 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:02:16,034 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:02:16,035 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:02:16,036 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:02:16,038 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:02:16,038 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:02:16,039 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:02:16,040 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:02:16,041 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:02:16,041 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:02:16,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:02:16,341 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:02:16,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16 WrapperNode [2022-11-20 12:02:16,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:02:16,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:02:16,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:02:16,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:02:16,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (1/1) ... [2022-11-20 12:02:16,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (1/1) ... [2022-11-20 12:02:16,432 INFO L138 Inliner]: procedures = 592, calls = 608, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 84 [2022-11-20 12:02:16,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:02:16,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:02:16,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:02:16,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:02:16,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (1/1) ... [2022-11-20 12:02:16,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (1/1) ... [2022-11-20 12:02:16,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (1/1) ... [2022-11-20 12:02:16,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (1/1) ... [2022-11-20 12:02:16,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (1/1) ... [2022-11-20 12:02:16,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (1/1) ... [2022-11-20 12:02:16,466 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (1/1) ... [2022-11-20 12:02:16,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (1/1) ... [2022-11-20 12:02:16,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:02:16,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:02:16,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:02:16,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:02:16,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (1/1) ... [2022-11-20 12:02:16,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:02:16,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:02:16,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:02:16,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:02:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:02:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:02:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 12:02:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 12:02:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:02:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:02:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:02:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:02:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:02:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:02:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2022-11-20 12:02:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2022-11-20 12:02:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-20 12:02:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-20 12:02:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:02:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:02:16,843 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:02:16,845 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:02:17,106 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:02:17,113 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:02:17,113 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:02:17,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:02:17 BoogieIcfgContainer [2022-11-20 12:02:17,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:02:17,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:02:17,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:02:17,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:02:17,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:02:14" (1/3) ... [2022-11-20 12:02:17,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19668f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:02:17, skipping insertion in model container [2022-11-20 12:02:17,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:16" (2/3) ... [2022-11-20 12:02:17,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19668f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:02:17, skipping insertion in model container [2022-11-20 12:02:17,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:02:17" (3/3) ... [2022-11-20 12:02:17,125 INFO L112 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2022-11-20 12:02:17,146 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:02:17,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:02:17,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:02:17,207 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@414999f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:02:17,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:02:17,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-20 12:02:17,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 12:02:17,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:17,221 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:17,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:17,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:17,228 INFO L85 PathProgramCache]: Analyzing trace with hash 16590849, now seen corresponding path program 1 times [2022-11-20 12:02:17,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:02:17,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415510927] [2022-11-20 12:02:17,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:17,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:02:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:17,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:02:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:17,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:02:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:17,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:02:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:17,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:02:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-20 12:02:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-20 12:02:17,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:02:17,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415510927] [2022-11-20 12:02:17,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415510927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:02:17,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:02:17,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:02:17,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417174632] [2022-11-20 12:02:17,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:17,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:02:17,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:02:17,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:02:17,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:02:17,757 INFO L87 Difference]: Start difference. First operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:02:17,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:17,808 INFO L93 Difference]: Finished difference Result 117 states and 167 transitions. [2022-11-20 12:02:17,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:02:17,811 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2022-11-20 12:02:17,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:17,823 INFO L225 Difference]: With dead ends: 117 [2022-11-20 12:02:17,823 INFO L226 Difference]: Without dead ends: 52 [2022-11-20 12:02:17,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:02:17,840 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:17,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:02:17,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-20 12:02:17,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-20 12:02:17,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 12:02:17,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-11-20 12:02:17,901 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 36 [2022-11-20 12:02:17,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:17,902 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-11-20 12:02:17,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:02:17,903 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-11-20 12:02:17,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 12:02:17,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:17,906 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:17,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:02:17,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:17,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:17,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1271235587, now seen corresponding path program 1 times [2022-11-20 12:02:17,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:02:17,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604331190] [2022-11-20 12:02:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:17,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:02:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:18,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:02:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:18,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:02:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:18,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:02:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:18,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:02:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:18,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-20 12:02:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 12:02:18,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:02:18,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604331190] [2022-11-20 12:02:18,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604331190] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:02:18,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961497951] [2022-11-20 12:02:18,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:18,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:02:18,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:02:18,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:02:19,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:02:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:19,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 12:02:19,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 12:02:19,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 12:02:20,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961497951] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:02:20,002 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:02:20,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 14 [2022-11-20 12:02:20,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795660738] [2022-11-20 12:02:20,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:02:20,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 12:02:20,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:02:20,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 12:02:20,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:02:20,006 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 12:02:20,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:20,328 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2022-11-20 12:02:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:02:20,328 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 36 [2022-11-20 12:02:20,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:20,330 INFO L225 Difference]: With dead ends: 58 [2022-11-20 12:02:20,332 INFO L226 Difference]: Without dead ends: 56 [2022-11-20 12:02:20,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:02:20,334 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 61 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:20,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 482 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:02:20,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-20 12:02:20,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-20 12:02:20,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 15 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 12:02:20,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-11-20 12:02:20,352 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 36 [2022-11-20 12:02:20,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:20,354 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-11-20 12:02:20,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 12:02:20,355 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-11-20 12:02:20,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 12:02:20,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:20,359 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-20 12:02:20,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:20,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:02:20,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:20,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:20,567 INFO L85 PathProgramCache]: Analyzing trace with hash 2010040638, now seen corresponding path program 1 times [2022-11-20 12:02:20,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:02:20,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480814323] [2022-11-20 12:02:20,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:20,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:02:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:02:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:02:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:02:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:02:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-20 12:02:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:02:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,123 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-20 12:02:21,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:02:21,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480814323] [2022-11-20 12:02:21,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480814323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:02:21,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:02:21,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:02:21,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422443432] [2022-11-20 12:02:21,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:21,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:02:21,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:02:21,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:02:21,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:02:21,127 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-20 12:02:21,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:21,377 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2022-11-20 12:02:21,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:02:21,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 42 [2022-11-20 12:02:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:21,380 INFO L225 Difference]: With dead ends: 83 [2022-11-20 12:02:21,380 INFO L226 Difference]: Without dead ends: 81 [2022-11-20 12:02:21,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:02:21,382 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 78 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:21,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 377 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:02:21,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-20 12:02:21,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 66. [2022-11-20 12:02:21,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 42 states have (on average 1.119047619047619) internal successors, (47), 44 states have internal predecessors, (47), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-20 12:02:21,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2022-11-20 12:02:21,399 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 42 [2022-11-20 12:02:21,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:21,399 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2022-11-20 12:02:21,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-20 12:02:21,400 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2022-11-20 12:02:21,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 12:02:21,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:21,401 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-20 12:02:21,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:02:21,402 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:21,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:21,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1722148702, now seen corresponding path program 1 times [2022-11-20 12:02:21,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:02:21,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594899760] [2022-11-20 12:02:21,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:21,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:02:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:02:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:02:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:02:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:02:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:02:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:02:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:21,565 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-20 12:02:21,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:02:21,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594899760] [2022-11-20 12:02:21,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594899760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:02:21,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:02:21,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:02:21,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267966574] [2022-11-20 12:02:21,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:21,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:02:21,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:02:21,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:02:21,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:02:21,568 INFO L87 Difference]: Start difference. First operand 66 states and 81 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:02:21,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:21,598 INFO L93 Difference]: Finished difference Result 113 states and 136 transitions. [2022-11-20 12:02:21,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:02:21,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2022-11-20 12:02:21,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:21,601 INFO L225 Difference]: With dead ends: 113 [2022-11-20 12:02:21,601 INFO L226 Difference]: Without dead ends: 68 [2022-11-20 12:02:21,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:02:21,603 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:21,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 123 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:02:21,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-20 12:02:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2022-11-20 12:02:21,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 45 states have internal predecessors, (48), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-20 12:02:21,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 82 transitions. [2022-11-20 12:02:21,618 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 82 transitions. Word has length 43 [2022-11-20 12:02:21,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:21,619 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 82 transitions. [2022-11-20 12:02:21,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:02:21,619 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 82 transitions. [2022-11-20 12:02:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 12:02:21,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:21,621 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-20 12:02:21,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:02:21,621 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:21,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:21,622 INFO L85 PathProgramCache]: Analyzing trace with hash 982661572, now seen corresponding path program 1 times [2022-11-20 12:02:21,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:02:21,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885043077] [2022-11-20 12:02:21,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:21,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:02:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:02:21,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:02:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:02:21,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:02:21,785 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:02:21,786 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:02:21,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:02:21,791 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 12:02:21,795 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:02:21,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:02:21 BoogieIcfgContainer [2022-11-20 12:02:21,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:02:21,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:02:21,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:02:21,861 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:02:21,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:02:17" (3/4) ... [2022-11-20 12:02:21,865 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:02:21,865 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:02:21,866 INFO L158 Benchmark]: Toolchain (without parser) took 7568.82ms. Allocated memory was 178.3MB in the beginning and 264.2MB in the end (delta: 86.0MB). Free memory was 127.1MB in the beginning and 102.8MB in the end (delta: 24.3MB). Peak memory consumption was 110.9MB. Max. memory is 16.1GB. [2022-11-20 12:02:21,867 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 178.3MB. Free memory was 149.4MB in the beginning and 149.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:02:21,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2044.01ms. Allocated memory was 178.3MB in the beginning and 264.2MB in the end (delta: 86.0MB). Free memory was 126.5MB in the beginning and 180.7MB in the end (delta: -54.2MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2022-11-20 12:02:21,870 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.60ms. Allocated memory is still 264.2MB. Free memory was 180.7MB in the beginning and 175.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:02:21,871 INFO L158 Benchmark]: Boogie Preprocessor took 38.55ms. Allocated memory is still 264.2MB. Free memory was 175.5MB in the beginning and 173.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:02:21,872 INFO L158 Benchmark]: RCFGBuilder took 643.32ms. Allocated memory is still 264.2MB. Free memory was 173.4MB in the beginning and 153.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 12:02:21,872 INFO L158 Benchmark]: TraceAbstraction took 4742.17ms. Allocated memory is still 264.2MB. Free memory was 152.4MB in the beginning and 103.9MB in the end (delta: 48.5MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2022-11-20 12:02:21,874 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 264.2MB. Free memory was 103.9MB in the beginning and 102.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:02:21,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 178.3MB. Free memory was 149.4MB in the beginning and 149.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2044.01ms. Allocated memory was 178.3MB in the beginning and 264.2MB in the end (delta: 86.0MB). Free memory was 126.5MB in the beginning and 180.7MB in the end (delta: -54.2MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.60ms. Allocated memory is still 264.2MB. Free memory was 180.7MB in the beginning and 175.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.55ms. Allocated memory is still 264.2MB. Free memory was 175.5MB in the beginning and 173.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 643.32ms. Allocated memory is still 264.2MB. Free memory was 173.4MB in the beginning and 153.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4742.17ms. Allocated memory is still 264.2MB. Free memory was 152.4MB in the beginning and 103.9MB in the end (delta: 48.5MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 264.2MB. Free memory was 103.9MB in the beginning and 102.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * 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: [L5919] CALL memset_override_0_harness() [L5906] short d1[160]; [L5907] short d2[160]; [L5908] int c = __VERIFIER_nondet_int(); [L5909] CALL assume_abort_if_not(c == 0) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5909] RET assume_abort_if_not(c == 0) VAL [c=0, d1={5:0}, d2={4:0}] [L5911] unsigned size = __VERIFIER_nondet_uint(); [L5912] CALL assume_abort_if_not((size & 0x7) == 0) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5912] RET assume_abort_if_not((size & 0x7) == 0) VAL [c=0, d1={5:0}, d2={4:0}, size=1] [L5913] CALL assume_abort_if_not(size < 160) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5913] RET assume_abort_if_not(size < 160) VAL [c=0, d1={5:0}, d2={4:0}, size=1] [L5914] CALL memset_impl(d1, c, size) [L5870] CALL assume_abort_if_not((((n) == 0) || (s))) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5870] RET assume_abort_if_not((((n) == 0) || (s))) VAL [c=0, n=1, s={5:0}] [L5871] COND TRUE n > 0 [L5872] char *sp = (char *)s; [L5873] unsigned long i = 0; VAL [c=0, i=0, n=1, s={5:0}, sp={5:0}] [L5873] COND TRUE i < n [L5874] sp[i] = c VAL [c=0, i=0, n=1, s={5:0}, sp={5:0}] [L5873] i++ VAL [c=0, i=1, n=1, s={5:0}, sp={5:0}] [L5873] COND FALSE !(i < n) VAL [c=0, i=1, n=1, s={5:0}, sp={5:0}] [L5876] return s; VAL [c=0, i=1, n=1, s={5:0}, sp={5:0}] [L5914] RET memset_impl(d1, c, size) [L5915] CALL memset_override_0_impl(d2, c, size) [L5881] CALL assume_abort_if_not((((n) == 0) || (dst))) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5881] RET assume_abort_if_not((((n) == 0) || (dst))) VAL [c=0, dst={4:0}, n=1] [L5883] CALL __VERIFIER_assert(c == 0) VAL [\old(cond)=1] [L223] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5883] RET __VERIFIER_assert(c == 0) VAL [c=0, dst={4:0}, n=1] [L5884] size_t num_uint64s = n >> 3; [L5885] size_t rem = n & 0x7; VAL [c=0, dst={4:0}, n=1, num_uint64s=0, rem=1] [L5886] CALL __VERIFIER_assert(rem == 0) VAL [\old(cond)=0] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0] [L223] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 1057 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 797 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 289 IncrementalHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 260 mSDtfsCounter, 289 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 117 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 572 SizeOfPredicates, 14 NumberOfNonLiveVariables, 144 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 208/244 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 [2022-11-20 12:02:21,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:02:24,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:02:24,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:02:24,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:02:24,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:02:24,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:02:24,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:02:24,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:02:24,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:02:24,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:02:24,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:02:24,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:02:24,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:02:24,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:02:24,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:02:24,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:02:24,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:02:24,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:02:24,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:02:24,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:02:24,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:02:24,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:02:24,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:02:24,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:02:24,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:02:24,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:02:24,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:02:24,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:02:24,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:02:24,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:02:24,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:02:24,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:02:24,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:02:24,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:02:24,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:02:24,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:02:24,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:02:24,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:02:24,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:02:24,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:02:24,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:02:24,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:02:24,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:02:24,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:02:24,577 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:02:24,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:02:24,579 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:02:24,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:02:24,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:02:24,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:02:24,581 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:02:24,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:02:24,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:02:24,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:02:24,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:02:24,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:02:24,583 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:02:24,583 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:02:24,584 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:02:24,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:02:24,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:02:24,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:02:24,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:02:24,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:02:24,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:02:24,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:02:24,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:02:24,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:02:24,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:02:24,586 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:02:24,587 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:02:24,587 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:02:24,587 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:02:24,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:02:24,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:02:24,588 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2022-11-20 12:02:24,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:02:25,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:02:25,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:02:25,013 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:02:25,014 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:02:25,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-20 12:02:28,120 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:02:28,595 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:02:28,596 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-20 12:02:28,637 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/data/f56bc475f/3b8f3b47fff946b0abec5bd0df4015ef/FLAG5f31f9df3 [2022-11-20 12:02:28,659 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/data/f56bc475f/3b8f3b47fff946b0abec5bd0df4015ef [2022-11-20 12:02:28,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:02:28,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:02:28,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:02:28,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:02:28,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:02:28,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:02:28" (1/1) ... [2022-11-20 12:02:28,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed4acbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:28, skipping insertion in model container [2022-11-20 12:02:28,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:02:28" (1/1) ... [2022-11-20 12:02:28,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:02:28,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:02:29,027 WARN L237 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-20 12:02:29,034 WARN L237 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-20 12:02:29,791 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,792 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,793 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,794 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,795 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,809 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,810 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,811 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,812 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,814 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,816 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,816 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:29,817 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,101 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:02:30,105 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:02:30,107 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:02:30,108 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:02:30,111 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:02:30,111 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:02:30,115 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:02:30,117 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:02:30,118 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:02:30,118 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:02:30,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:02:30,236 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:02:30,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:02:30,275 WARN L237 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-20 12:02:30,276 WARN L237 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-20 12:02:30,341 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,342 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,342 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,343 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,344 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,352 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,352 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,353 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,354 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,355 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,356 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,357 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,357 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,383 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:02:30,384 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:02:30,385 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:02:30,386 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:02:30,387 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:02:30,387 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:02:30,388 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:02:30,388 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:02:30,389 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:02:30,389 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:02:30,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:02:30,412 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:02:30,425 WARN L237 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-20 12:02:30,426 WARN L237 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_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-20 12:02:30,461 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,462 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,462 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,463 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,464 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,470 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,471 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,472 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,473 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,474 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,474 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,475 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,475 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:02:30,501 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:02:30,507 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:02:30,508 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:02:30,510 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:02:30,511 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:02:30,512 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:02:30,514 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:02:30,515 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:02:30,516 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:02:30,516 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:02:30,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:02:30,736 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:02:30,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30 WrapperNode [2022-11-20 12:02:30,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:02:30,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:02:30,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:02:30,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:02:30,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (1/1) ... [2022-11-20 12:02:30,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (1/1) ... [2022-11-20 12:02:30,831 INFO L138 Inliner]: procedures = 611, calls = 608, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 84 [2022-11-20 12:02:30,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:02:30,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:02:30,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:02:30,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:02:30,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (1/1) ... [2022-11-20 12:02:30,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (1/1) ... [2022-11-20 12:02:30,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (1/1) ... [2022-11-20 12:02:30,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (1/1) ... [2022-11-20 12:02:30,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (1/1) ... [2022-11-20 12:02:30,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (1/1) ... [2022-11-20 12:02:30,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (1/1) ... [2022-11-20 12:02:30,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (1/1) ... [2022-11-20 12:02:30,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:02:30,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:02:30,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:02:30,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:02:30,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (1/1) ... [2022-11-20 12:02:30,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:02:30,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:02:30,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:02:30,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:02:30,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:02:30,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:02:30,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 12:02:30,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 12:02:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:02:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:02:30,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:02:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:02:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:02:30,988 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:02:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:02:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:02:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:02:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2022-11-20 12:02:31,005 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2022-11-20 12:02:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-20 12:02:31,005 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-20 12:02:31,334 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:02:31,339 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:02:31,682 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:02:31,689 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:02:31,689 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:02:31,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:02:31 BoogieIcfgContainer [2022-11-20 12:02:31,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:02:31,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:02:31,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:02:31,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:02:31,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:02:28" (1/3) ... [2022-11-20 12:02:31,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132187d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:02:31, skipping insertion in model container [2022-11-20 12:02:31,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:02:30" (2/3) ... [2022-11-20 12:02:31,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132187d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:02:31, skipping insertion in model container [2022-11-20 12:02:31,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:02:31" (3/3) ... [2022-11-20 12:02:31,699 INFO L112 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2022-11-20 12:02:31,722 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:02:31,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:02:31,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:02:31,800 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c18d8cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:02:31,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:02:31,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-20 12:02:31,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 12:02:31,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:31,823 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:31,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:31,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:31,830 INFO L85 PathProgramCache]: Analyzing trace with hash 16590849, now seen corresponding path program 1 times [2022-11-20 12:02:31,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:31,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905409949] [2022-11-20 12:02:31,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:31,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:31,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:31,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:31,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:02:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:32,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:02:32,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 12:02:32,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:02:32,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:32,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905409949] [2022-11-20 12:02:32,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905409949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:02:32,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:02:32,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:02:32,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298514917] [2022-11-20 12:02:32,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:32,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:02:32,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:32,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:02:32,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:02:32,198 INFO L87 Difference]: Start difference. First operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 12:02:32,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:32,238 INFO L93 Difference]: Finished difference Result 117 states and 167 transitions. [2022-11-20 12:02:32,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:02:32,241 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 36 [2022-11-20 12:02:32,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:32,250 INFO L225 Difference]: With dead ends: 117 [2022-11-20 12:02:32,251 INFO L226 Difference]: Without dead ends: 52 [2022-11-20 12:02:32,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:02:32,268 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:32,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:02:32,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-20 12:02:32,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-20 12:02:32,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 12:02:32,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-11-20 12:02:32,325 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 36 [2022-11-20 12:02:32,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:32,325 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-11-20 12:02:32,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 12:02:32,326 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-11-20 12:02:32,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 12:02:32,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:32,329 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:32,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:32,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:32,553 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:32,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:32,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1271235587, now seen corresponding path program 1 times [2022-11-20 12:02:32,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:32,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [829693053] [2022-11-20 12:02:32,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:32,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:32,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:32,557 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:32,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:02:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:32,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:02:32,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 12:02:32,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 12:02:33,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:33,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [829693053] [2022-11-20 12:02:33,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [829693053] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:02:33,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:02:33,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-11-20 12:02:33,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097897906] [2022-11-20 12:02:33,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:02:33,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:02:33,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:33,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:02:33,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:02:33,123 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 12:02:33,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:33,434 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2022-11-20 12:02:33,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:02:33,435 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 36 [2022-11-20 12:02:33,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:33,436 INFO L225 Difference]: With dead ends: 58 [2022-11-20 12:02:33,437 INFO L226 Difference]: Without dead ends: 56 [2022-11-20 12:02:33,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:02:33,438 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 46 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:33,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 252 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:02:33,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-20 12:02:33,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-20 12:02:33,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 15 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 12:02:33,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-11-20 12:02:33,468 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 36 [2022-11-20 12:02:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:33,470 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-11-20 12:02:33,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 12:02:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-11-20 12:02:33,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 12:02:33,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:33,472 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-20 12:02:33,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:33,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:33,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:33,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:33,687 INFO L85 PathProgramCache]: Analyzing trace with hash 2010040638, now seen corresponding path program 1 times [2022-11-20 12:02:33,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:33,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888261204] [2022-11-20 12:02:33,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:33,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:33,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:33,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:33,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:02:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:33,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:02:33,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 12:02:34,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:34,665 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 12:02:34,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:34,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888261204] [2022-11-20 12:02:34,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888261204] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:02:34,666 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:02:34,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-11-20 12:02:34,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276989337] [2022-11-20 12:02:34,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:02:34,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 12:02:34,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:34,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 12:02:34,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:02:34,670 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-20 12:02:35,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:35,028 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2022-11-20 12:02:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:02:35,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 42 [2022-11-20 12:02:35,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:35,030 INFO L225 Difference]: With dead ends: 62 [2022-11-20 12:02:35,030 INFO L226 Difference]: Without dead ends: 60 [2022-11-20 12:02:35,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:02:35,032 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 13 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:35,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 480 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 38 Unchecked, 0.2s Time] [2022-11-20 12:02:35,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-20 12:02:35,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-20 12:02:35,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 40 states have internal predecessors, (44), 15 states have call successors, (15), 6 states have call predecessors, (15), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 12:02:35,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2022-11-20 12:02:35,044 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 42 [2022-11-20 12:02:35,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:35,045 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2022-11-20 12:02:35,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-20 12:02:35,045 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2022-11-20 12:02:35,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-20 12:02:35,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:35,047 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 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] [2022-11-20 12:02:35,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:35,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:35,269 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:35,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:35,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1110629482, now seen corresponding path program 1 times [2022-11-20 12:02:35,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:35,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725933625] [2022-11-20 12:02:35,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:35,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:35,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:35,272 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:35,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:02:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:02:35,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:35,643 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-20 12:02:35,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:02:35,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:35,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725933625] [2022-11-20 12:02:35,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725933625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:02:35,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:02:35,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:02:35,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146875689] [2022-11-20 12:02:35,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:35,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:02:35,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:35,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:02:35,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:02:35,647 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 12:02:35,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:35,814 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2022-11-20 12:02:35,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:02:35,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 51 [2022-11-20 12:02:35,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:35,816 INFO L225 Difference]: With dead ends: 66 [2022-11-20 12:02:35,816 INFO L226 Difference]: Without dead ends: 64 [2022-11-20 12:02:35,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:02:35,818 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 24 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:35,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 249 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:02:35,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-20 12:02:35,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-20 12:02:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 12:02:35,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2022-11-20 12:02:35,839 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 51 [2022-11-20 12:02:35,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:35,840 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2022-11-20 12:02:35,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 12:02:35,841 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2022-11-20 12:02:35,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 12:02:35,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:35,843 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:35,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:36,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:36,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:36,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:36,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1132287315, now seen corresponding path program 1 times [2022-11-20 12:02:36,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:36,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423518388] [2022-11-20 12:02:36,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:36,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:36,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:36,059 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:36,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:02:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:36,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 12:02:36,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 12:02:36,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:36,622 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-20 12:02:36,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:36,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423518388] [2022-11-20 12:02:36,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423518388] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:02:36,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:02:36,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2022-11-20 12:02:36,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736641312] [2022-11-20 12:02:36,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:36,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:02:36,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:36,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:02:36,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:02:36,625 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-20 12:02:36,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:36,784 INFO L93 Difference]: Finished difference Result 107 states and 126 transitions. [2022-11-20 12:02:36,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:02:36,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 68 [2022-11-20 12:02:36,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:36,787 INFO L225 Difference]: With dead ends: 107 [2022-11-20 12:02:36,790 INFO L226 Difference]: Without dead ends: 79 [2022-11-20 12:02:36,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:02:36,791 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 30 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:36,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 185 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:02:36,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-20 12:02:36,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2022-11-20 12:02:36,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 52 states have internal predecessors, (57), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-20 12:02:36,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 93 transitions. [2022-11-20 12:02:36,810 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 93 transitions. Word has length 68 [2022-11-20 12:02:36,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:36,811 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 93 transitions. [2022-11-20 12:02:36,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-20 12:02:36,811 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 93 transitions. [2022-11-20 12:02:36,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-20 12:02:36,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:36,813 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:36,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:37,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:37,035 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:37,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:37,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1524731977, now seen corresponding path program 1 times [2022-11-20 12:02:37,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:37,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112478802] [2022-11-20 12:02:37,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:37,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:37,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:37,039 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:37,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:02:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:37,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 12:02:37,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:37,457 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 38 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 12:02:37,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-20 12:02:37,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:37,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112478802] [2022-11-20 12:02:37,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112478802] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:02:37,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:02:37,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-11-20 12:02:37,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298015328] [2022-11-20 12:02:37,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:37,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:02:37,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:37,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:02:37,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:02:37,582 INFO L87 Difference]: Start difference. First operand 77 states and 93 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 12:02:37,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:37,626 INFO L93 Difference]: Finished difference Result 131 states and 153 transitions. [2022-11-20 12:02:37,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:02:37,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2022-11-20 12:02:37,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:37,632 INFO L225 Difference]: With dead ends: 131 [2022-11-20 12:02:37,632 INFO L226 Difference]: Without dead ends: 78 [2022-11-20 12:02:37,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:02:37,641 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:37,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 123 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:02:37,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-20 12:02:37,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-20 12:02:37,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 53 states have internal predecessors, (58), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-20 12:02:37,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 94 transitions. [2022-11-20 12:02:37,671 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 94 transitions. Word has length 69 [2022-11-20 12:02:37,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:37,672 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 94 transitions. [2022-11-20 12:02:37,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 12:02:37,672 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 94 transitions. [2022-11-20 12:02:37,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 12:02:37,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:37,677 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:37,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:37,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:37,891 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:37,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:37,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1383518092, now seen corresponding path program 1 times [2022-11-20 12:02:37,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:37,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22531506] [2022-11-20 12:02:37,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:37,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:37,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:37,894 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:37,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:02:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:38,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 12:02:38,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:38,377 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 12:02:38,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-20 12:02:38,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:38,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22531506] [2022-11-20 12:02:38,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22531506] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:02:38,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:02:38,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2022-11-20 12:02:38,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139136103] [2022-11-20 12:02:38,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:38,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:02:38,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:02:38,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:02:38,581 INFO L87 Difference]: Start difference. First operand 78 states and 94 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-20 12:02:38,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:38,739 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2022-11-20 12:02:38,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:02:38,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 72 [2022-11-20 12:02:38,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:38,741 INFO L225 Difference]: With dead ends: 100 [2022-11-20 12:02:38,741 INFO L226 Difference]: Without dead ends: 65 [2022-11-20 12:02:38,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:02:38,742 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 25 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:38,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 262 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:02:38,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-20 12:02:38,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-20 12:02:38,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.0930232558139534) internal successors, (47), 44 states have internal predecessors, (47), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 12:02:38,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2022-11-20 12:02:38,758 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 72 [2022-11-20 12:02:38,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:38,758 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2022-11-20 12:02:38,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-20 12:02:38,759 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2022-11-20 12:02:38,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 12:02:38,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:38,760 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:38,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:38,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:38,989 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:38,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:38,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1069315495, now seen corresponding path program 1 times [2022-11-20 12:02:38,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:38,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167001102] [2022-11-20 12:02:38,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:38,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:38,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:38,992 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:39,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:02:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:39,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 12:02:39,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:39,499 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 12:02:39,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:39,862 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-20 12:02:39,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:39,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167001102] [2022-11-20 12:02:39,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167001102] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:02:39,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:02:39,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-11-20 12:02:39,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272437610] [2022-11-20 12:02:39,863 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:02:39,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 12:02:39,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:39,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 12:02:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:02:39,865 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 11 states have internal predecessors, (46), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-20 12:02:40,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:40,125 INFO L93 Difference]: Finished difference Result 122 states and 139 transitions. [2022-11-20 12:02:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:02:40,126 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 11 states have internal predecessors, (46), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 71 [2022-11-20 12:02:40,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:40,127 INFO L225 Difference]: With dead ends: 122 [2022-11-20 12:02:40,127 INFO L226 Difference]: Without dead ends: 69 [2022-11-20 12:02:40,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:02:40,128 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 4 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:40,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 475 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 20 Unchecked, 0.2s Time] [2022-11-20 12:02:40,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-20 12:02:40,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-20 12:02:40,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 48 states have internal predecessors, (51), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 12:02:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-11-20 12:02:40,141 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 71 [2022-11-20 12:02:40,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:40,141 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-20 12:02:40,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 11 states have internal predecessors, (46), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-20 12:02:40,142 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2022-11-20 12:02:40,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 12:02:40,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:40,143 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:40,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:40,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:40,355 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:40,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:40,356 INFO L85 PathProgramCache]: Analyzing trace with hash 511671837, now seen corresponding path program 2 times [2022-11-20 12:02:40,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:40,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102326614] [2022-11-20 12:02:40,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:02:40,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:40,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:40,357 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:40,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:02:40,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:02:40,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:02:40,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 12:02:40,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 15 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 12:02:41,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-20 12:02:41,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:41,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102326614] [2022-11-20 12:02:41,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102326614] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:02:41,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:02:41,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2022-11-20 12:02:41,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724335820] [2022-11-20 12:02:41,781 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:02:41,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:02:41,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:41,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:02:41,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:02:41,782 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-20 12:02:42,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:42,712 INFO L93 Difference]: Finished difference Result 130 states and 149 transitions. [2022-11-20 12:02:42,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 12:02:42,714 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 75 [2022-11-20 12:02:42,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:42,715 INFO L225 Difference]: With dead ends: 130 [2022-11-20 12:02:42,715 INFO L226 Difference]: Without dead ends: 77 [2022-11-20 12:02:42,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-20 12:02:42,716 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 6 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:42,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 487 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 30 Unchecked, 0.2s Time] [2022-11-20 12:02:42,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-20 12:02:42,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-20 12:02:42,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 55 states have (on average 1.0727272727272728) internal successors, (59), 56 states have internal predecessors, (59), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 12:02:42,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2022-11-20 12:02:42,729 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 75 [2022-11-20 12:02:42,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:42,730 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2022-11-20 12:02:42,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-20 12:02:42,730 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2022-11-20 12:02:42,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-20 12:02:42,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:42,731 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:42,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-11-20 12:02:42,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:42,952 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:42,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:42,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1085153371, now seen corresponding path program 3 times [2022-11-20 12:02:42,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:42,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127349562] [2022-11-20 12:02:42,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:02:42,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:42,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:42,954 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:42,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 12:02:43,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-20 12:02:43,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:02:43,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 12:02:43,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-20 12:02:43,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-20 12:02:43,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:43,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127349562] [2022-11-20 12:02:43,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127349562] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:02:43,844 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:02:43,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-11-20 12:02:43,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333828249] [2022-11-20 12:02:43,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:02:43,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 12:02:43,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:43,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 12:02:43,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:02:43,846 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand has 16 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 8 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-20 12:02:44,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:44,837 INFO L93 Difference]: Finished difference Result 113 states and 128 transitions. [2022-11-20 12:02:44,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:02:44,838 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 8 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 83 [2022-11-20 12:02:44,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:44,839 INFO L225 Difference]: With dead ends: 113 [2022-11-20 12:02:44,839 INFO L226 Difference]: Without dead ends: 85 [2022-11-20 12:02:44,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2022-11-20 12:02:44,840 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 67 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:44,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 407 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 145 Invalid, 0 Unknown, 20 Unchecked, 0.7s Time] [2022-11-20 12:02:44,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-20 12:02:44,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2022-11-20 12:02:44,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 59 states have (on average 1.0847457627118644) internal successors, (64), 60 states have internal predecessors, (64), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-20 12:02:44,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 94 transitions. [2022-11-20 12:02:44,868 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 94 transitions. Word has length 83 [2022-11-20 12:02:44,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:44,869 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 94 transitions. [2022-11-20 12:02:44,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 8 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-20 12:02:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions. [2022-11-20 12:02:44,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-20 12:02:44,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:44,872 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:44,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:45,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:45,087 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:45,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:45,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2075883641, now seen corresponding path program 1 times [2022-11-20 12:02:45,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:45,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983018089] [2022-11-20 12:02:45,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:45,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:45,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:45,089 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:45,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 12:02:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:45,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:02:45,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:46,328 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-20 12:02:46,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 9 proven. 61 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-20 12:02:47,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:47,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983018089] [2022-11-20 12:02:47,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983018089] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:02:47,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:02:47,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 26 [2022-11-20 12:02:47,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287307602] [2022-11-20 12:02:47,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:02:47,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 12:02:47,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:47,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 12:02:47,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2022-11-20 12:02:47,752 INFO L87 Difference]: Start difference. First operand 82 states and 94 transitions. Second operand has 26 states, 25 states have (on average 2.88) internal successors, (72), 23 states have internal predecessors, (72), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-20 12:02:48,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:48,208 INFO L93 Difference]: Finished difference Result 142 states and 162 transitions. [2022-11-20 12:02:48,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:02:48,210 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.88) internal successors, (72), 23 states have internal predecessors, (72), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 85 [2022-11-20 12:02:48,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:48,211 INFO L225 Difference]: With dead ends: 142 [2022-11-20 12:02:48,211 INFO L226 Difference]: Without dead ends: 84 [2022-11-20 12:02:48,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2022-11-20 12:02:48,212 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 6 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:48,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 736 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 48 Unchecked, 0.3s Time] [2022-11-20 12:02:48,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-20 12:02:48,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-20 12:02:48,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 61 states have (on average 1.0819672131147542) internal successors, (66), 62 states have internal predecessors, (66), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-20 12:02:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2022-11-20 12:02:48,227 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 85 [2022-11-20 12:02:48,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:48,227 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2022-11-20 12:02:48,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.88) internal successors, (72), 23 states have internal predecessors, (72), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-20 12:02:48,228 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2022-11-20 12:02:48,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-20 12:02:48,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:48,229 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:48,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:48,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:48,443 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash 24387113, now seen corresponding path program 2 times [2022-11-20 12:02:48,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:48,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566648242] [2022-11-20 12:02:48,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:02:48,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:48,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:48,445 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:48,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 12:02:49,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:02:49,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:02:49,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 94 conjunts are in the unsatisfiable core [2022-11-20 12:02:49,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:49,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-20 12:02:49,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-20 12:02:50,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:50,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:02:50,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:50,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:50,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-20 12:02:51,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2022-11-20 12:02:51,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:51,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2022-11-20 12:02:52,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:52,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:52,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:52,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:52,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:52,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:52,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:52,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:52,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:52,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:52,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:52,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2022-11-20 12:02:53,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 87 [2022-11-20 12:02:53,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:53,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 93 [2022-11-20 12:02:58,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:02:58,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:02:58,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:02:58,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:02:58,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:02:58,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:02:58,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:02:58,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:02:58,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 57 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 173 [2022-11-20 12:03:04,264 INFO L321 Elim1Store]: treesize reduction 122, result has 5.4 percent of original size [2022-11-20 12:03:04,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 29 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 16 case distinctions, treesize of input 127 treesize of output 61 [2022-11-20 12:03:04,575 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 35 proven. 89 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 12:03:04,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:03:05,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:03:05,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566648242] [2022-11-20 12:03:05,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566648242] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:03:05,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1115557011] [2022-11-20 12:03:05,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:03:05,468 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 12:03:05,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 12:03:05,470 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 12:03:05,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-20 12:03:06,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:03:06,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:03:06,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 88 conjunts are in the unsatisfiable core [2022-11-20 12:03:06,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:03:06,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-20 12:03:08,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:08,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:03:08,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:08,962 INFO L321 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2022-11-20 12:03:08,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2022-11-20 12:03:09,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:09,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:09,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:09,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:09,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:09,767 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 12:03:09,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 45 [2022-11-20 12:03:10,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:10,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:10,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:10,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:10,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:10,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:10,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:10,611 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 12:03:10,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 58 [2022-11-20 12:03:11,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:11,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:11,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:11,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:11,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:11,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:11,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:11,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:11,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:11,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:11,609 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 12:03:11,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 72 [2022-11-20 12:03:12,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:12,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:12,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:12,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:12,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:12,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:12,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:12,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:12,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:12,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:12,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:12,698 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 12:03:12,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 84 [2022-11-20 12:03:13,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:13,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:13,975 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 12:03:13,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 98 [2022-11-20 12:03:15,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:15,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:15,252 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 12:03:15,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 82 treesize of output 102 [2022-11-20 12:03:22,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:22,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:22,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:22,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:22,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:22,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:22,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:22,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:22,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:03:22,911 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:03:22,929 INFO L321 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2022-11-20 12:03:22,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 57 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 132 treesize of output 183 [2022-11-20 12:03:32,142 INFO L321 Elim1Store]: treesize reduction 162, result has 4.1 percent of original size [2022-11-20 12:03:32,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 29 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 34 case distinctions, treesize of input 134 treesize of output 64 [2022-11-20 12:03:32,164 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 41 proven. 83 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 12:03:32,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:03:32,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1115557011] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:03:32,238 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:03:32,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 37] total 72 [2022-11-20 12:03:32,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445853647] [2022-11-20 12:03:32,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:03:32,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-11-20 12:03:32,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:03:32,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-11-20 12:03:32,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=5497, Unknown=0, NotChecked=0, Total=5852 [2022-11-20 12:03:32,242 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. Second operand has 72 states, 68 states have (on average 1.6323529411764706) internal successors, (111), 67 states have internal predecessors, (111), 12 states have call successors, (21), 7 states have call predecessors, (21), 10 states have return successors, (20), 12 states have call predecessors, (20), 11 states have call successors, (20) [2022-11-20 12:03:55,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:03:59,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:04:03,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:04:06,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:04:18,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:04:18,043 INFO L93 Difference]: Finished difference Result 188 states and 212 transitions. [2022-11-20 12:04:18,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-20 12:04:18,044 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 68 states have (on average 1.6323529411764706) internal successors, (111), 67 states have internal predecessors, (111), 12 states have call successors, (21), 7 states have call predecessors, (21), 10 states have return successors, (20), 12 states have call predecessors, (20), 11 states have call successors, (20) Word has length 87 [2022-11-20 12:04:18,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:04:18,046 INFO L225 Difference]: With dead ends: 188 [2022-11-20 12:04:18,046 INFO L226 Difference]: Without dead ends: 184 [2022-11-20 12:04:18,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 95 SyntacticMatches, 18 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4206 ImplicationChecksByTransitivity, 38.9s TimeCoverageRelationStatistics Valid=902, Invalid=11308, Unknown=0, NotChecked=0, Total=12210 [2022-11-20 12:04:18,050 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 241 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 2555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 385 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:04:18,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1632 Invalid, 2555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2096 Invalid, 0 Unknown, 385 Unchecked, 36.4s Time] [2022-11-20 12:04:18,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-20 12:04:18,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 158. [2022-11-20 12:04:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 113 states have (on average 1.079646017699115) internal successors, (122), 115 states have internal predecessors, (122), 28 states have call successors, (28), 19 states have call predecessors, (28), 16 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2022-11-20 12:04:18,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 174 transitions. [2022-11-20 12:04:18,087 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 174 transitions. Word has length 87 [2022-11-20 12:04:18,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:04:18,087 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 174 transitions. [2022-11-20 12:04:18,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 68 states have (on average 1.6323529411764706) internal successors, (111), 67 states have internal predecessors, (111), 12 states have call successors, (21), 7 states have call predecessors, (21), 10 states have return successors, (20), 12 states have call predecessors, (20), 11 states have call successors, (20) [2022-11-20 12:04:18,088 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 174 transitions. [2022-11-20 12:04:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-20 12:04:18,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:04:18,089 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:18,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:04:18,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:04:18,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt [2022-11-20 12:04:18,495 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:04:18,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:18,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1360942848, now seen corresponding path program 1 times [2022-11-20 12:04:18,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:04:18,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798112132] [2022-11-20 12:04:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:18,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:04:18,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:04:18,498 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:04:18,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 12:04:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:18,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 12:04:18,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:04:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-20 12:04:19,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:04:19,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:04:19,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798112132] [2022-11-20 12:04:19,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798112132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:19,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:19,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:04:19,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387193689] [2022-11-20 12:04:19,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:19,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:04:19,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:04:19,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:04:19,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:04:19,135 INFO L87 Difference]: Start difference. First operand 158 states and 174 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-20 12:04:19,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:04:19,332 INFO L93 Difference]: Finished difference Result 184 states and 198 transitions. [2022-11-20 12:04:19,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:04:19,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 89 [2022-11-20 12:04:19,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:04:19,335 INFO L225 Difference]: With dead ends: 184 [2022-11-20 12:04:19,335 INFO L226 Difference]: Without dead ends: 132 [2022-11-20 12:04:19,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:04:19,337 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 17 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:04:19,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 179 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 14 Unchecked, 0.1s Time] [2022-11-20 12:04:19,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-20 12:04:19,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-11-20 12:04:19,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 95 states have (on average 1.0526315789473684) internal successors, (100), 97 states have internal predecessors, (100), 22 states have call successors, (22), 15 states have call predecessors, (22), 14 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-20 12:04:19,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 142 transitions. [2022-11-20 12:04:19,371 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 142 transitions. Word has length 89 [2022-11-20 12:04:19,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:04:19,371 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 142 transitions. [2022-11-20 12:04:19,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-20 12:04:19,372 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 142 transitions. [2022-11-20 12:04:19,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-20 12:04:19,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:04:19,373 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:19,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:04:19,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:04:19,576 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:04:19,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:19,577 INFO L85 PathProgramCache]: Analyzing trace with hash -250047413, now seen corresponding path program 3 times [2022-11-20 12:04:19,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:04:19,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548526806] [2022-11-20 12:04:19,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:04:19,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:04:19,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:04:19,578 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:04:19,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 12:04:20,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-20 12:04:20,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:04:20,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 12:04:20,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:04:21,401 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 41 proven. 87 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 12:04:21,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:04:24,404 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 9 proven. 84 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-20 12:04:24,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:04:24,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548526806] [2022-11-20 12:04:24,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548526806] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:04:24,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:04:24,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 38 [2022-11-20 12:04:24,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939401803] [2022-11-20 12:04:24,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:04:24,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-20 12:04:24,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:04:24,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-20 12:04:24,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1160, Unknown=0, NotChecked=0, Total=1406 [2022-11-20 12:04:24,408 INFO L87 Difference]: Start difference. First operand 132 states and 142 transitions. Second operand has 38 states, 36 states have (on average 2.388888888888889) internal successors, (86), 37 states have internal predecessors, (86), 8 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2022-11-20 12:04:35,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:04:35,695 INFO L93 Difference]: Finished difference Result 209 states and 239 transitions. [2022-11-20 12:04:35,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-20 12:04:35,698 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 2.388888888888889) internal successors, (86), 37 states have internal predecessors, (86), 8 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) Word has length 89 [2022-11-20 12:04:35,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:04:35,700 INFO L225 Difference]: With dead ends: 209 [2022-11-20 12:04:35,700 INFO L226 Difference]: Without dead ends: 157 [2022-11-20 12:04:35,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=656, Invalid=2650, Unknown=0, NotChecked=0, Total=3306 [2022-11-20 12:04:35,702 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 503 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:04:35,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 723 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 836 Invalid, 0 Unknown, 78 Unchecked, 3.1s Time] [2022-11-20 12:04:35,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-20 12:04:35,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2022-11-20 12:04:35,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.0512820512820513) internal successors, (123), 119 states have internal predecessors, (123), 22 states have call successors, (22), 15 states have call predecessors, (22), 14 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-20 12:04:35,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 165 transitions. [2022-11-20 12:04:35,749 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 165 transitions. Word has length 89 [2022-11-20 12:04:35,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:04:35,749 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 165 transitions. [2022-11-20 12:04:35,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 2.388888888888889) internal successors, (86), 37 states have internal predecessors, (86), 8 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2022-11-20 12:04:35,750 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 165 transitions. [2022-11-20 12:04:35,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-20 12:04:35,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:04:35,751 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:35,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 12:04:35,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:04:35,967 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:04:35,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:35,967 INFO L85 PathProgramCache]: Analyzing trace with hash -59588295, now seen corresponding path program 4 times [2022-11-20 12:04:35,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:04:35,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255505489] [2022-11-20 12:04:35,968 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 12:04:35,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:04:35,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:04:35,969 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:04:35,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 12:04:36,313 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 12:04:36,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:04:36,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-20 12:04:36,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:04:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 38 proven. 269 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 12:04:38,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:04:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 9 proven. 269 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-20 12:04:44,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:04:44,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255505489] [2022-11-20 12:04:44,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255505489] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:04:44,520 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:04:44,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29] total 56 [2022-11-20 12:04:44,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221126252] [2022-11-20 12:04:44,520 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:04:44,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-20 12:04:44,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:04:44,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-20 12:04:44,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2022-11-20 12:04:44,522 INFO L87 Difference]: Start difference. First operand 154 states and 165 transitions. Second operand has 56 states, 55 states have (on average 2.090909090909091) internal successors, (115), 53 states have internal predecessors, (115), 10 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 11 states have call predecessors, (19), 10 states have call successors, (19) [2022-11-20 12:04:50,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:04:50,189 INFO L93 Difference]: Finished difference Result 219 states and 242 transitions. [2022-11-20 12:04:50,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-20 12:04:50,191 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 2.090909090909091) internal successors, (115), 53 states have internal predecessors, (115), 10 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 11 states have call predecessors, (19), 10 states have call successors, (19) Word has length 103 [2022-11-20 12:04:50,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:04:50,192 INFO L225 Difference]: With dead ends: 219 [2022-11-20 12:04:50,192 INFO L226 Difference]: Without dead ends: 183 [2022-11-20 12:04:50,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=728, Invalid=3304, Unknown=0, NotChecked=0, Total=4032 [2022-11-20 12:04:50,194 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 380 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 139 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:04:50,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1896 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1331 Invalid, 0 Unknown, 139 Unchecked, 4.7s Time] [2022-11-20 12:04:50,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-20 12:04:50,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 156. [2022-11-20 12:04:50,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 119 states have (on average 1.050420168067227) internal successors, (125), 121 states have internal predecessors, (125), 22 states have call successors, (22), 15 states have call predecessors, (22), 14 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-20 12:04:50,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 167 transitions. [2022-11-20 12:04:50,245 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 167 transitions. Word has length 103 [2022-11-20 12:04:50,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:04:50,245 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 167 transitions. [2022-11-20 12:04:50,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 2.090909090909091) internal successors, (115), 53 states have internal predecessors, (115), 10 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 11 states have call predecessors, (19), 10 states have call successors, (19) [2022-11-20 12:04:50,246 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 167 transitions. [2022-11-20 12:04:50,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-20 12:04:50,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:04:50,247 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:50,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 12:04:50,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:04:50,458 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:04:50,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:50,458 INFO L85 PathProgramCache]: Analyzing trace with hash 609255285, now seen corresponding path program 1 times [2022-11-20 12:04:50,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:04:50,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226546431] [2022-11-20 12:04:50,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:50,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:04:50,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:04:50,460 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:04:50,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 12:04:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:51,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-20 12:04:51,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:04:52,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:04:52,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:04:52,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:04:52,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:04:52,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:04:52,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:04:52,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:04:52,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:04:52,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:04:52,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:04:52,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:04:52,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:04:52,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:04:52,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:04:52,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2022-11-20 12:04:59,240 INFO L321 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-20 12:04:59,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2022-11-20 12:04:59,462 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 54 proven. 96 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 12:04:59,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:05:00,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:05:00,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226546431] [2022-11-20 12:05:00,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226546431] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:05:00,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [227053311] [2022-11-20 12:05:00,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:00,162 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 12:05:00,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 12:05:00,163 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 12:05:00,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2022-11-20 12:05:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:01,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-20 12:05:01,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:03,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:03,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:03,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:03,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:03,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:03,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:03,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:03,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:03,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:03,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:03,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:03,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:03,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:03,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:03,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2022-11-20 12:05:08,432 INFO L321 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-20 12:05:08,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2022-11-20 12:05:08,447 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 60 proven. 84 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-20 12:05:08,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:05:08,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [227053311] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:05:08,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:05:08,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 42 [2022-11-20 12:05:08,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215814203] [2022-11-20 12:05:08,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:05:08,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-20 12:05:08,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:05:08,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-20 12:05:08,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2037, Unknown=0, NotChecked=0, Total=2162 [2022-11-20 12:05:08,517 INFO L87 Difference]: Start difference. First operand 156 states and 167 transitions. Second operand has 42 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 37 states have internal predecessors, (82), 9 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 9 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-20 12:05:24,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:24,376 INFO L93 Difference]: Finished difference Result 208 states and 219 transitions. [2022-11-20 12:05:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-20 12:05:24,377 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 37 states have internal predecessors, (82), 9 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 9 states have call predecessors, (16), 8 states have call successors, (16) Word has length 108 [2022-11-20 12:05:24,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:24,378 INFO L225 Difference]: With dead ends: 208 [2022-11-20 12:05:24,378 INFO L226 Difference]: Without dead ends: 161 [2022-11-20 12:05:24,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 159 SyntacticMatches, 23 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=335, Invalid=3825, Unknown=0, NotChecked=0, Total=4160 [2022-11-20 12:05:24,381 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 257 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 176 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:24,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1249 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1317 Invalid, 0 Unknown, 176 Unchecked, 13.3s Time] [2022-11-20 12:05:24,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-20 12:05:24,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 158. [2022-11-20 12:05:24,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 121 states have (on average 1.0495867768595042) internal successors, (127), 123 states have internal predecessors, (127), 22 states have call successors, (22), 15 states have call predecessors, (22), 14 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-20 12:05:24,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 169 transitions. [2022-11-20 12:05:24,442 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 169 transitions. Word has length 108 [2022-11-20 12:05:24,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:24,443 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 169 transitions. [2022-11-20 12:05:24,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 37 states have internal predecessors, (82), 9 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 9 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-20 12:05:24,443 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 169 transitions. [2022-11-20 12:05:24,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-20 12:05:24,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:24,445 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 6, 6, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:24,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2022-11-20 12:05:24,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:24,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:05:24,862 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:24,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:24,863 INFO L85 PathProgramCache]: Analyzing trace with hash -55356389, now seen corresponding path program 5 times [2022-11-20 12:05:24,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:05:24,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870451504] [2022-11-20 12:05:24,863 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 12:05:24,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:05:24,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:05:24,864 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:05:24,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-20 12:05:28,486 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2022-11-20 12:05:28,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:05:28,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 161 conjunts are in the unsatisfiable core [2022-11-20 12:05:28,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:28,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-20 12:05:29,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-20 12:05:29,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2022-11-20 12:05:29,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2022-11-20 12:05:30,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 53 [2022-11-20 12:05:31,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 67 [2022-11-20 12:05:32,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 81 [2022-11-20 12:05:33,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 95 [2022-11-20 12:05:33,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:33,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-20 12:05:34,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 114 [2022-11-20 12:05:35,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:35,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 126 [2022-11-20 12:05:36,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:36,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 140 [2022-11-20 12:05:38,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:38,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 154 [2022-11-20 12:05:39,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:39,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 168 [2022-11-20 12:05:40,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:40,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 178 [2022-11-20 12:05:42,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:42,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 191 [2022-11-20 12:05:43,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:43,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 121 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 205 [2022-11-20 12:05:55,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:55,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:55,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:55,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:55,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:55,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:55,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:55,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:55,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 149 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 294 [2022-11-20 12:05:58,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:58,872 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:58,873 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:58,874 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:58,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:58,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:58,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:58,877 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:05:58,877 INFO L217 Elim1Store]: Index analysis took 142 ms [2022-11-20 12:05:58,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 241 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 300 treesize of output 396 [2022-11-20 12:06:17,738 INFO L321 Elim1Store]: treesize reduction 250, result has 2.7 percent of original size [2022-11-20 12:06:17,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 34 select indices, 34 select index equivalence classes, 121 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 32 case distinctions, treesize of input 239 treesize of output 109 [2022-11-20 12:06:18,364 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 42 proven. 284 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 12:06:18,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:06:19,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:06:19,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870451504] [2022-11-20 12:06:19,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870451504] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:06:19,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1926777066] [2022-11-20 12:06:19,920 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 12:06:19,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 12:06:19,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 12:06:19,924 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 12:06:19,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1809f6db-41b0-42f7-a5ed-32f8cf2875eb/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process